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https://www.readbyqxmd.com/read/28934848/profiling-of-serum-metabolites-using-maldi-tof-and-triple-tof-mass-spectrometry-to-develop-a-screen-for-ovarian-cancer
#1
Jun Hwa Lee, Yun Hwan Kim, Kyung-Hee Kim, Jae Youl Cho, Sang Myung Woo, Byong Chul Yoo, Seung Cheol Kim
Purpose: We sought to develop a matrix assisted laser desorption ionization-time of flight (MALDI-TOF)-based, ovarian cancer (OVC), low-mass-ion discriminant equation (LOME) and to evaluate a possible supportive role for triple-TOF mass analysis in identifying metabolic biomarkers. Materials and Methods: A total of 114 serum samples from patients with OVC and benign ovarian tumors were subjected to MALDI-TOF analysis and a total of 137 serum samples from healthy female individuals and patients with OVC, colorectal cancer, hepatobiliary cancer, and pancreatic cancer were subjected to triple-TOF analysis...
September 18, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/28934293/generation-of-a-pancreatic-cancer-model-using-a-pdx1-flp-recombinase-knock-in-allele
#2
Jinghai Wu, Xin Liu, Sunayana G Nayak, Jason R Pitarresi, Maria C Cuitiño, Lianbo Yu, Blake E Hildreth, Katie A Thies, Daniel J Schilling, Soledad A Fernandez, Gustavo Leone, Michael C Ostrowski
The contribution of the tumor microenvironment to the development of pancreatic adenocarcinoma (PDAC) is unclear. The LSL-KrasG12D/+;LSL-p53R172H/+;Pdx-1-Cre (KPC) tumor model, which is widely utilized to faithfully recapitulate human pancreatic cancer, depends on Cre-mediated recombination in the epithelial lineage to drive tumorigenesis. Therefore, specific Cre-loxP recombination in stromal cells cannot be applied in this model, limiting the in vivo investigation of stromal genetics in tumor initiation and progression...
2017: PloS One
https://www.readbyqxmd.com/read/28933761/neoadjuvant-therapy-of-pancreatic-cancer-definitions-and-benefits
#3
REVIEW
Stefan Heinrich, Hauke Lang
The standard treatment of resectable pancreatic cancer is surgery followed by adjuvant chemotherapy. Due to the complication rate of pancreatic surgery and the high rate of primary irresectability, neoadjuvant concepts are increasingly used for pancreatic cancer. Neoadjuvant therapy is better tolerated than adjuvant and might decrease the surgical complication rate from pancreatic surgery. In contrast to neoadjuvant chemoradiation, the nutritional status improves during neoadjuvant chemotherapy. Also, the survival of patients who develop postoperative complications after neoadjuvant therapy is comparable to those without complications whereas the survival of patients who underwent upfront surgery and then develop surgical complications is impaired...
July 26, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28932093/postoperative-inflammation-as-a-possible-cause-of-portal-vein-thrombosis-after-irreversible-electroporation-for-locally-advanced-pancreatic-cancer
#4
Jun-Jun Su, Ming Su, Kai Xu, Peng-Fei Wang, Li Yan, Shi-Chun Lu, Wan-Qing Gu, Yong-Liang Chen
Portal vein thrombosis (PVT) is a rare but serious postoperative complication associated with irreversible electroporation (IRE). We report a case of postoperative PVT in a 54-year-old woman who underwent IRE for locally advanced pancreatic cancer. Drain removal and discharge of the patient from the hospital were scheduled on postoperative day (POD) 7; however, a magnetic resonance imaging scan revealed the presence of PVT. We suspected postoperative inflammation in the pancreas as the main cause of PVT. However, the patient did not undergo any medical treatment because she did not have any clinical symptoms, and she was discharged on POD 8...
August 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28932079/nano-albumin-bound-paclitaxel-in-pancreatic-cancer-current-evidences-and-future-directions
#5
REVIEW
Guido Giordano, Massimo Pancione, Nunzio Olivieri, Pietro Parcesepe, Marianna Velocci, Tania Di Raimo, Luigi Coppola, Giuseppe Toffoli, Mario Rosario D'Andrea
Pancreatic cancer (PDAC) is an aggressive and chemoresistant disease, representing the fourth cause of cancer related deaths in western countries. Majority of patients have unresectable, locally advanced or metastatic disease at time of diagnosis and the 5-year survival rate in these conditions is extremely low. For more than a decade gemcitabine has been the cornerstone of metastatic PDAC treatment, although survival benefit was very poor. PDAC cells are surrounded by an intense desmoplastic reaction that may create a barrier to the drugs penetration within the tumor...
August 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28931010/response-to-folfirinox-by-gender-in-patients-with-metastatic-pancreatic-cancer-results-from-the-prodige-4-accord-11-randomized-trial
#6
Aurélien Lambert, Marta Jarlier, Sophie Gourgou Bourgade, Thierry Conroy
BACKGROUND: Hohla et al. suggested that female gender could positively predict response to FOLFIRINOX in patients with advanced pancreatic cancer. In this study, we explored the response to the FOLFIRINOX regimen by gender within the trial PRODIGE4/ACCORD 11. PATIENTS AND METHODS: Data were described by gender, both in FOLFIRINOX group and in the intention-to-treat population of the trial. The relative effect of gender (females in comparison to males) on overall survival (OS) and progression-free survival was estimated by using a Cox proportional hazard model and was presented with the Hazard Ratio and their 95% confidence interval...
2017: PloS One
https://www.readbyqxmd.com/read/28930675/dynamic-rearrangement-of-cell-states-detected-by-systematic-screening-of-sequential-anticancer-treatments
#7
Simon Koplev, James Longden, Jesper Ferkinghoff-Borg, Mathias Blicher Bjerregård, Thomas R Cox, Janine T Erler, Jesper T Pedersen, Franziska Voellmy, Morten O A Sommer, Rune Linding
Signaling networks are nonlinear and complex, involving a large ensemble of dynamic interaction states that fluctuate in space and time. However, therapeutic strategies, such as combination chemotherapy, rarely consider the timing of drug perturbations. If we are to advance drug discovery for complex diseases, it will be essential to develop methods capable of identifying dynamic cellular responses to clinically relevant perturbations. Here, we present a Bayesian dose-response framework and the screening of an oncological drug matrix, comprising 10,000 drug combinations in melanoma and pancreatic cancer cell lines, from which we predict sequentially effective drug combinations...
September 19, 2017: Cell Reports
https://www.readbyqxmd.com/read/28930257/physicochemical-properties-antioxidant-and-cytotoxic-activities-of-crude-extracts-and-fractions-from-phyllanthus-amarus
#8
Van Tang Nguyen, Jennette A Sakoff, Christopher J Scarlett
Background:Phyllanthus amarus (P. amarus) has been used as a medicinal plant for the prevention and treatment of chronic ailments such as diabetes, hepatitis, and cancer. Methods: The physicochemical properties, antioxidant and cytotoxic activities of crude extracts and fractions from P. amarus were determined using spectrophotometric method. Results: The P. amarus methanol (PAM) extract had lower levels of residual moisture (7.40%) and water activity (0.24) and higher contents of saponins, phenolics, flavonoids, and proanthocyanidins (1657...
June 18, 2017: Medicines (Basel, Switzerland)
https://www.readbyqxmd.com/read/28929814/what-s-new-in-the-diagnosis-of-pancreatic-cancer-a-patent-review-2011-present
#9
Houria Boulaiz, María C Ramos, Carmen Griñán-Lisón, Maria E García-Rubiño, Francisca Vicente, Juan Antonio Marchal
Pancreatic cancer (PC) is the fourth leading cause of cancer-related death in the US with a 5-year survival rate of about 5%. Most patients have advanced metastatic disease mainly due to the lack of an effective early detection, and an extremely poor prognosis. Advancing in the fight against PC requires developing novel observable biomarkers at preclinical stages for early detection. Areas covered: This manuscript is an overview of different PC diagnostic modalities and the latest innovations made to enhance early PC detection through the patents published from 2011 to 2017...
September 20, 2017: Expert Opinion on Therapeutic Patents
https://www.readbyqxmd.com/read/28929492/potent-antitumor-effect-of-tumor-microenvironment-targeted-oncolytic-adenovirus-against-desmoplastic-pancreatic-cancer
#10
Yan Li, JinWoo Hong, Joung-Eun Oh, A-Rum Yoon, Chae-Ok Yun
Pancreatic cancer is a leading cause of cancer-related death. Desmoplastic pancreatic tumors exhibit excessive extracellular matrix (ECM) and are thus highly resistant to anticancer therapeutics, since the ECM restricts drug penetration and dispersion. Here, we designed and generated two hypoxia-responsive and cancer-specific hybrid promoters, H(mT)E and H(E)mT. Transgene expression driven by each hybrid promoter was markedly higher under hypoxic conditions than normoxic conditions. Moreover, H(E)mT-driven transgene expression was highly cancer-specific and was superior to that of H(mT)E-driven expression...
September 20, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28929489/association-between-long-term-low-intensity-cigarette-smoking-and-incidence-of-smoking-related-cancer-in-the-national-institutes-of-health-aarp-cohort
#11
Maki Inoue-Choi, Patricia Hartge, Linda M Liao, Neil Caporaso, Neal D Freedman
An increasing proportion of US smokers smoke ≤10 cigarettes per day (CPD) or do not smoke every day, yet the health effects of low-intensity smoking are poorly understood. We identified lifelong smokers of <1 or 1-10 CPD and evaluated risk of incident cancer among 238,525 cancer-free adults, aged 59-82, in the NIH-AARP Diet and Health Study. A questionnaire administered in 2004-2005 assessed CPD during nine age-periods (<15 to ≥70). We estimated hazard ratios (HR) and 95% confidence intervals (CI) using multivariable-adjusted Cox proportional hazards regression with age as the underlying time metric...
September 20, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28929175/tusc3-functional-duality-of-a-cancer-gene
#12
REVIEW
Kateřina Vašíčková, Peter Horak, Petr Vaňhara
Two decades ago, following a systematic screening of LOH regions on chromosome 8p22, TUSC3 has been identified as a candidate tumor suppressor gene in ovarian, prostate and pancreatic cancers. Since then, a growing body of evidence documented its clinical importance in various other types of cancers, and first initial insights into its molecular function and phenotypic effects have been gained, though the precise role of TUSC3 in different cancers remains unclear. As a part of the oligosaccharyltransferase complex, TUSC3 localizes to the endoplasmic reticulum and functions in final steps of N-glycosylation of proteins, while its loss evokes the unfolded protein response...
September 19, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28928899/hyperpolarized-13-c-diffusion-mrs-of-co-polarized-pyruvate-and-fumarate-to-measure-lactate-export-and-necrosis
#13
Benedikt Feuerecker, Markus Durst, Michael Michalik, Günter Schneider, Dieter Saur, Marion Menzel, Markus Schwaiger, Franz Schilling
Background: Non-invasive tumor characterization and monitoring are among the key goals of medical imaging. Using hyperpolarized (13)C-labelled metabolic probes fast metabolic pathways can be probed in real-time, providing new opportunities for tumor characterization. In this in vitro study, we investigated whether measurement of apparent diffusion coefficient (ADC) measurements and magnetic resonance spectroscopy (MRS) of co-polarized (13)C-labeled pyruvic acid and fumaric acid can non-invasively detect both necrosis and changes in lactate export, which are parameters indicative of tumor aggressiveness...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28928888/potential-roles-of-peripheral-dopamine-in-tumor-immunity
#14
REVIEW
Xiang Zhang, Qiaofei Liu, Quan Liao, Yupei Zhao
Recent years, immunotherapy has turned out to be a promising strategy against tumors. Peripheral dopamine (DA) has important roles in immune system among tumor patients. Accumulated reports demonstrate variable expression and distribution of DA receptors (DRs) in diverse immune cells. Interestingly, peripheral DA also involves in tumor progression and it exerts anticancer effects on immunomodulation, which includes inflammasomes in cancer, function of immune effector cells, such as T lymphocytes, myeloid-derived suppressor cells (MDSCs), tumor-associated macrophages (TAMs) and natural killer (NK) cells...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28928875/microrna-216b-5p-functions-as-a-tumor-suppressive-rna-by-targeting-tpt1-in-pancreatic-cancer-cells
#15
Yu You, Jiaxin Tan, Yi Gong, Haisu Dai, Haowei Chen, Xuejun Xu, Aigang Yang, Yujun Zhang, Ping Bie
MicroRNAs (miRNAs) are increasingly recognized as being involved in pancreatic cancer progression by directly regulating the expression of their targets. In this study, we showed that miR-216b-5p expression was significantly decreased in pancreatic cancer tissues and cell lines. In addition, low miR-216b-5p expression was significantly associated with large tumor size and advanced TNM stage. Meanwhile, both Kaplan-Meier and multivariate survival analysis showed that decreased miR-216b-5p expression was associated with overall survival...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28928287/hif-3%C3%AE-promotes-metastatic-phenotypes-in-pancreatic-cancer-by-transcriptional-regulation-of-the-rhoc-rock1-signaling-pathway
#16
Xianfei Zhou, Xingjun Guo, Meiyuan Chen, Chencheng Xie, Jianxin Jiang
Hypoxia contributes to pancreatic cancer progression and promotes its growth and invasion. Previous research principally focused on hypoxia-inducible factor-1 alpha and HIF-2α (HIF1A and EPAS1) as the major hypoxia-associated transcription factors in pancreatic cancer. However, the role of HIF-3α (HIF3A) has not been investigated. Therefore, HIF-1α, HIF-2α, and HIF-3α expression levels were measured under normoxic and hypoxic conditions. In addition, HIF-3α expression was measured in human pancreatic cancer tissue specimens and the impact of altered HIF-3α expression on cell invasion and migration was investigated in vitro and in vivo, as well as the underlying mechanisms...
September 19, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28927939/autophagy-inhibition-enhances-antiproliferative-effect-of-salinomycin-in-pancreatic-cancer-cells
#17
Sho Endo, Kohei Nakata, Akiko Sagara, Kazuhiro Koikawa, Yohei Ando, Shin Kibe, Shin Takesue, Hiromichi Nakayama, Toshiya Abe, Takashi Okumura, Taiki Moriyama, Yoshihiro Miyasaka, Kenoki Ohuchida, Takao Ohtsuka, Kazuhiro Mizumoto, Masafumi Nakamura
BACKGROUND: Salinomycin has cytotoxic effects on various types of malignancy and induces autophagy. However, it has not been clarified whether autophagy induced by salinomycin treatment has a protective or cytotoxic role. We investigated whether salinomycin affects autophagy in pancreatic cancer cells and whether autophagy induced by salinomycin treatment has a protective or cytotoxic role in these cells. METHODS: We investigated the effect of salinomycin using three pancreatic cancer cell lines...
August 25, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/28927421/a-25-gene-classifier-predicts-overall-survival-in-resectable-pancreatic-cancer
#18
David J Birnbaum, Pascal Finetti, Alexia Lopresti, Marine Gilabert, Flora Poizat, Jean-Luc Raoul, Jean-Robert Delpero, Vincent Moutardier, Daniel Birnbaum, Emilie Mamessier, François Bertucci
BACKGROUND: Pancreatic carcinoma is one of the most lethal human cancers. In patients with resectable tumors, surgery followed by adjuvant chemotherapy is the only curative treatment. However, the 5-year survival is 20%. Because of a strong metastatic propensity, neoadjuvant chemotherapy is being tested in randomized clinical trials. In this context, improving the selection of patients for immediate surgery or neoadjuvant chemotherapy is crucial, and high-throughput molecular analyses may help; the present study aims to address this...
September 20, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28927071/microrna-452-suppresses-pancreatic-cancer-migration-and-invasion-by-directly-targeting-b-cell-specific-moloney-murine-leukemia-virus-insertion-site-1
#19
Hongyan Li, Yan Wu, Peixiu Li
Pancreatic cancer, one of the most common cancers globally, is the fourth most common cause of cancer-associated mortality in the USA. The 5-year relative survival rate for patients with pancreatic cancer is ~5% and the median survival time is only 6 months. The poor prognosis is mainly due to early and aggressive local invasion and metastasis, as well as dissemination of the pancreatic cancer cells. The present study demonstrated that microRNA-452 (miR-452) was markedly downregulated in pancreatic cancer tissues, particularly in metastatic tumors and pancreatic cancer cell lines...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927058/degree-of-desmoplasia-in-metastatic-lymph-node-lesions-is-associated-with-lesion-size-and-poor-prognosis-in-pancreatic-cancer-patients
#20
Hiromichi Nakayama, Kenoki Ohuchida, Masaki Yoshida, Tetsuyuki Miyazaki, Shin Takesue, Toshiya Abe, Sho Endo, Kazuhiro Koikawa, Takashi Okumura, Taiki Moriyama, Kohei Nakata, Yoshihiro Miyasaka, Kengo Shirahane, Tatsuya Manabe, Takao Ohtsuka, Hiroki Toma, Yohei Tominaga, Eishi Nagai, Kazuhiro Mizumoto, Yoshinao Oda, Masafumi Nakamura
Pancreatic cancer is characterized by increased hyperplasia of fibrotic tissue, termed desmoplasia, and lymph node metastasis is an independent prognostic factor in this disease. However, there are no reports focused on desmoplasia in pancreatic cancer lymph node metastases. The present study evaluated a range of factors and investigated their association with poor prognosis in pancreatic cancer cases with lymph node metastasis, including the degree of desmoplasia in lesions. To identify the poor prognostic factors associated with lymph node metastasis, the present study retrospectively reviewed the clinical data of 65 patients with lymph node metastases that underwent surgical pancreatic cancer resection between 2007 and 2012 at a single institution...
September 2017: Oncology Letters
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