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https://www.readbyqxmd.com/read/28320094/lncrna-meg3-had-anti-cancer-effects-to-suppress-pancreatic-cancer-activity
#1
Lei Gu, Jiaqiang Zhang, Minmin Shi, Qian Zhan, Baiyong Shen, Chenghong Peng
AIM: The aim of this study was to explain the mechanism of lncRNA MEG 3 in pancreatic cancer. METHODS: We were collecting 30 pancreatic cancer patients, taking the sample from these patients. We measured the PI3K protein expressions from 30 patients by IHC and WB methods and MEG 3 expression by RT-PCR, and analyzed the relationship between PI3K protein expression and pancreatic cancer patients' clinical pathology and the correlation between lncRNA MEG 3 and PI3K...
March 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28318082/histopathological-tumour-viability-after-neoadjuvant-chemotherapy-influences-survival-in-resected-pancreatic-cancer-analysis-of-early-outcome-data
#2
Phil Townend, Phil R de Reuver, Terence C Chua, Anubhav Mittal, Stephen J Clark, Nick Pavlakis, Anthony J Gill, Jaswinder S Samra
BACKGROUND: Neoadjuvant therapy is increasingly recognized as an effective strategy prior to pancreatoduodenectomy. We investigate the role of neoadjuvant chemotherapy (NAC) followed by surgery and the predictive role of viable residual tumour cells histopathologically on outcomes. METHODS: The study population comprised of 195 consecutive patients with pancreatic adenocarcinoma who were treated with either NAC or a surgery-first (SF) strategy. Histopathological viable tumour cells were examined in the NAC patients and clinicopathological factors were correlated with overall survival...
March 20, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28318081/silencing-of-atf2-inhibits-growth-of-pancreatic-cancer-cells-and-enhances-sensitivity-to-chemotherapy
#3
Mu Li, Xingda Wu, Ning Liu, Xiaoying Li, Fanbin Meng, Shaowei Song
Pancreatic cancer is one of the leading causes of cancer-related death worldwide. Activating transcription factor 2 (ATF2) is a multifunctional transcription factor, and is implicated in tumor progress, yet its role in pancreatic cancer remains unclear. In the present study, the level of ATF2 in pancreatic cancer tissues and the adjacent non-tumorous tissues was detected by quantitative real-time PCR and western blot. The roles of ATF2 in the proliferation, cell cycle, and apoptosis of pancreatic cancer cells were investigated through ATF2 silencing, and the effect of ATF2 shRNA on the sensitivity of pancreatic cancer cells to gemcitabine, an anti-tumor drug, was explored...
March 20, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28317579/the-influence-of-neural-invasion-on-survival-and-tumor-recurrence-in-pancreatic-ductal-adenocarcinoma-a-systematic-review-and-meta-analysis
#4
REVIEW
Stephan Schorn, Ihsan Ekin Demir, Bernhard Haller, Florian Scheufele, Carmen Mota Reyes, Elke Tieftrunk, Mine Sargut, Ruediger Goess, Helmut Friess, Güralp Onur Ceyhan
OBJECTIVES: To assess the impact of neural invasion/NI on overall survival/OS and tumor recurrence in pancreatic ductal adenocarcinoma/PDAC. SUMMARY BACKGROUND DATA: NI is a histopathological hallmark of PDAC. Although some studies suggested an important role for NI on OS, disease-free/DFS and progression-free survival/PFS in PDAC, there is still no consensus on the actual role of NI on survival and local recurrence in PDAC. METHODS: Pubmed, Cochrane library, Ovid and Google Scholar were screened for the terms "pancreatic ductal adenocarcinoma", "pancreatic cancer", "survival", "tumor recurrence" and "perineural invasion"...
March 2017: Surgical Oncology
https://www.readbyqxmd.com/read/28317015/evaluation-of-the-2015-aga-guidelines-on-pancreatic-cystic-neoplasms-in-a-large-surgically-confirmed-multicenter-cohort
#5
Phillip S Ge, V Raman Muthusamy, Srinivas Gaddam, Diana-Marie Jaiyeola, Stephen Kim, Alireza Sedarat, Timothy R Donahue, Lindsay Hosford, Robert H Wilson, David P Grande, Rajesh N Keswani, Vladimir M Kushnir, Daniel Mullady, Steven A Edmundowicz, Dayna S Early, Srinadh Komanduri, Sachin Wani, Rabindra R Watson
Background and study aims The American Gastroenterological Association (AGA) recently published guidelines for the management of asymptomatic pancreatic cystic neoplasms (PCNs). We aimed to evaluate the diagnostic characteristics of the AGA guidelines in appropriately recommending surgery for malignant PCNs. Patients and methods A retrospective multicenter study was performed of patients who underwent endoscopic ultrasound (EUS) for evaluation of PCNs who ultimately underwent surgical resection from 2004 - 2014...
March 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28316954/molecular-pathways-controlling-autophagy-in-pancreatic-cancer
#6
REVIEW
Maria New, Tim Van Acker, Jaclyn S Long, Jun-Ichi Sakamaki, Kevin M Ryan, Sharon A Tooze
Pancreatic ductal adenocarcinoma (PDAC) is one of the few cancer types where the 5-year survival rate shows no improvement. Despite conflicting evidence, the majority of data points to an essential role for autophagy in PDAC growth and survival, in particular constitutively activated autophagy, can provide crucial fuel to PDAC tumor cells in their nutrient-deprived environment. Autophagy, which is required for cell homeostasis, can both suppress and promote tumorigenesis and tumor survival in a context-dependent manner...
2017: Frontiers in 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
#7
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
#8
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/28315875/systematic-review-of-exocrine-pancreatic-insufficiency-after-gastrectomy-for-cancer
#9
Jennifer Straatman, Jim Wiegel, Nicole van der Wielen, E P Jansma, Miguel A Cuesta, Donald L van der Peet
BACKGROUND: Survival rates after a total gastrectomy with adequate lymphadenectomy are improving, leading to a shift in outcomes of interest from survival to postoperative outcomes and symptoms. In this systematic review, we investigate gastrointestinal symptoms that occur after a gastrectomy in relation to exocrine pancreatic insufficiency and the effect of pancreatic exocrine enzyme supplementation on these symptoms. METHODS: Online databases PubMed, Embase, and Cochrane Library were systematically searched in accordance with the PRISMA guidelines...
March 18, 2017: Digestive Surgery
https://www.readbyqxmd.com/read/28315433/increased-semaphorin-3c-expression-promotes-tumor-growth-and-metastasis-in-pancreatic-ductal-adenocarcinoma-by-activating-the-erk1-2-signaling-pathway
#10
Xuejun Xu, Zhiping Zhao, Sixiang Guo, Jian Li, Songsong Liu, Yu You, Bing Ni, Huaizhi Wang, Ping Bie
Pancreatic cancer is characterized by neural alterations and aberrant expression of neural-specific factors. Semaphorins have been recognized as key contributors in axon guidance, the immune response and tumor progression. Recent studies have suggested the involvement of Semaphorin 3c (sema3c) in tumorigenesis and metastasis in numerous types of cancer, however, the clinical significance of sema3c and its role in the growth and metastasis of pancreatic ductal adenocarcinoma (PDAC) remain unclear. In this study, we found that aberrant sema3c expression was positively associated with a particular tumor stage and correlated with poor survival of PDAC patients...
March 14, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28315432/splicing-factors-of-sr-and-hnrnp-families-as-regulators-of-apoptosis-in-cancer
#11
Hanna Kędzierska, Agnieszka Piekiełko-Witkowska
SR and hnRNP proteins were initially discovered as regulators of alternative splicing: the process of controlled removal of introns and selective joining of exons through which multiple transcripts and, subsequently, proteins can be expressed from a single gene. Alternative splicing affects genes involved in all crucial cellular processes, including apoptosis. During cancerogenesis impaired apoptotic control facilitates survival of cells bearing molecular aberrations, contributing to their unrestricted proliferation and chemoresistance...
March 14, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28315430/oncolytic-adenovirus-expressing-relaxin-ydc002-enhances-therapeutic-efficacy-of-gemcitabine-against-pancreatic-cancer
#12
Kyung Hee Jung, Il-Kyu Choi, Hee-Seung Lee, Hong Hua Yan, Mi Kwon Son, Hyo Min Ahn, JinWoo Hong, Chae-Ok Yun, Soon-Sun Hong
Pancreatic cancer is a highly lethal disease for which limited therapeutic options are available. Pancreatic cancer exhibits a pronounced collagen-rich stromal reaction, which induces chemoresistance by inhibiting drug diffusion into the tumor. Complementary treatment with oncolytic virus such as an oncolytic adenovirus expressing relaxin (YDC002) is an innovative treatment option for combating chemoresistant pancreatic cancer. Here, we examined the ability of combined treatment with gemcitabine and YDC002, which degrades extracellular matrix (ECM), to efficiently treat chemoresistant and desmoplastic pancreatic cancer...
March 14, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28315290/uca1-regulates-the-growth-and-metastasis-of-pancreatic-cancer-by-sponging-mir-135a
#13
Xiaobo Zhang, Feng Gao, Lei Zhou, Huaitao Wang, Gang Shi, Xiaodong Tan
Pancreatic cancer (PC) is a devastating malignant disease with poor prognosis. This study is aimed to investigate the role of urothelial carcinoma associated 1(UCA1) in the progression of PC. Our results revealed that long non-coding RNAs (lncRNAs)-UCA1 was overexpressed in PC tissues compared with adjacent histologically normal tissues. Down-regulated level of UCA1 was also detected in five human pancreatic cancer cell lines (SW1990,BxPC-3, MiaPaCa-2, PANC-1, CAPAN-1) compared with normal pancreatic duct epithelial HPDE cells...
March 7, 2017: Oncology Research
https://www.readbyqxmd.com/read/28315034/natural-history-of-pancreatic-cysts
#14
REVIEW
Alexander Larson, Richard S Kwon
Pancreatic cystic neoplasms are discovered with increasing frequency. Accurate knowledge of the natural history of cystic neoplasms is crucial to develop useful and cost-effective strategies for surveillance and surgical resection. To date, the natural history of cystic neoplasms is still incomplete due to lack of adequate diagnostic accuracy in the absence of surgical pathology. Nevertheless, current evidence points to risk factors for malignant transformation to help clinical management. New biomarkers that accurately distinguish cyst neoplasms and those most likely to progress to cancer would help clarify the natural history of cystic neoplasms...
March 17, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28314312/surgical-resection-for-pulmonary-metastasis-from-pancreatic-and-biliary-tract-cancer
#15
Tetsuzo Tagawa, Kensaku Ito, Kengo Fukuzawa, Tatsuro Okamoto, Atsuro Yoshimura, Takahide Kawasaki, Takashi Masuda, Kentaro Iwaki, Takahiro Terashi, Masahiro Okamoto, Akio Shiromizu, Akira Motohiro, Yoshihiko Maehara
AIM: To determine the efficacy of pulmonary metastasectomy for pancreatic and biliary tract cancer. PATIENTS AND METHODS: Ten patients who underwent therapeutic pulmonary metastasectomy after resection for pancreatic and biliary tract cancer at our Institution from 2006 to 2016 were retrospectively evaluated. RESULTS: The primary site was the pancreas in four patients and biliary tract in six. Nine patients had single metastasis, and one patient had bilateral multiple metastases...
March 2017: Anticancer Research
https://www.readbyqxmd.com/read/28304379/development-of-bioluminescent-chick-chorioallantoic-membrane-cam-models-for-primary-pancreatic-cancer-cells-a-platform-for-drug-testing
#16
Maria Rovithi, Amir Avan, Niccola Funel, Leticia G Leon, Valentina E Gomez, Thomas Wurdinger, Arjan W Griffioen, Henk M W Verheul, Elisa Giovannetti
The aim of the present study was to develop chick-embryo chorioallantoic membrane (CAM) bioluminescent tumor models employing low passage cell cultures obtained from primary pancreatic ductal adenocarcinoma (PDAC) cells. Primary PDAC cells transduced with lentivirus expressing Firefly-luciferase (Fluc) were established and inoculated onto the CAM membrane, with >80% engraftment. Fluc signal reliably correlated with tumor growth. Tumor features were evaluated by immunohistochemistry and genetic analyses, including analysis of mutations and mRNA expression of PDAC pivotal genes, as well as microRNA (miRNA) profiling...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28303874/-radical-oncological-stomach-liver-and-pancreatic-surgery-in-patients-over-80-years-old
#17
V K Lyadov, I A Kozyrin, Z A Kovalenko
AIM: To analyze the results of radical surgery for upper GI cancer in patients ≥80 years old. MATERIAL AND METHODS: For the period November 2010 - June 2015 there were 14 radical operations in elderly (≥80 years) patients with gastric, liver and pancreatic tumors. There were 4 Whipple procedures, 4 total and 2 distal gastrectomies, 1 total pancreatectomy as well as a central liver resection, one laparoscopic 5 segment resection and one 2, 3, 7 segment resection...
2017: Khirurgiia
https://www.readbyqxmd.com/read/28303855/expression-and-prognostic-value-of-indoleamine-2-3-dioxygenase-in-pancreatic-cancer
#18
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/28303435/systemic-combination-chemotherapy-in-elderly-pancreatic-cancer-a-review
#19
REVIEW
Gwenalyn Garcia, Marcel Odaimi
PURPOSE: In recent years, significant progress in survival has been achieved using systemic combination chemotherapy in patients with pancreatic cancer. However, the elderly are largely underrepresented in clinical trials, and gains made from these may not necessarily apply to this important subgroup of patients. We review the currently available data regarding contemporary combination chemotherapy regimens, including FOLFIRINOX, gemcitabine plus nab-paclitaxel, nanoliposomal irinotecan plus 5-fluorouracil and leucovorin, and gemcitabine plus capecitabine, in elderly pancreatic cancer patients...
March 16, 2017: Journal of Gastrointestinal Cancer
https://www.readbyqxmd.com/read/28303374/potentially-reversible-acute-cerebellar-toxicity-associated-with-minnelide
#20
Sara Khanipour Roshan, Anthony D Spano, Alexander M McKinney, David R Nascene
PURPOSE: Minnelide is an experimental antineoplastic agent that is currently the subject of a phase 1 clinical trial for the treatment of pancreatic and gastrointestinal malignancies. In this study, we documented two cases of reversible acute cerebellar toxicity (REACT) associated with Minnelide and compared its radiological manifestations with other cerebellotoxic agents. METHODS: Both patients had histories of progressive metastatic cancer and participated in a phase 1 clinical trial with Minnelide...
March 16, 2017: Neuroradiology
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