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https://www.readbyqxmd.com/read/29784432/outcome-quality-standards-in-pancreatic-oncologic-surgery-in-spain
#1
Luis Sabater, Isabel Mora, Juan Manuel Gámez Del Castillo, Javier Escrig-Sos, Elena Muñoz-Forner, Marina Garcés-Albir, Dimitri Dorcaratto, Joaquín Ortega
INTRODUCTION: To establish quality standards in oncologic surgery is a complex but necessary challenge to improve surgical outcomes. Unlike other tumors, there are no well-defined quality standards in pancreatic cancer. The aim of this study is to identify quality indicators in pancreatic oncologic surgery in Spain as well as their acceptable limits of variability. METHODS: Quality indicators were selected based on clinical practice guidelines, consensus conferences, reviews and national publications on oncologic pancreatic surgery between the years 2000 and 2016...
May 18, 2018: Cirugía Española
https://www.readbyqxmd.com/read/29782949/early-detection-of-pancreatic-cancers-in-liquid-biopsies-by-ultrasensitive-fluorescence-nanobiosensors
#2
Madumali Kalubowilage, Obdulia Covarrubias-Zambrano, Aruni P Malalasekera, Sebastian O Wendel, Hongwang Wang, Asanka S Yapa, Lauren Chlebanowski, Yubisela Toledo, Raquel Ortega, Katharine E Janik, Tej B Shrestha, Christopher T Culbertson, Anup Kasi, Stephen Williamson, Deryl L Troyer, Stefan H Bossmann
Numerous proteases, such as matrix metalloproteinases (MMP's), cathepsins (CTS), and urokinase plasminogen activator (UpA), are dysfunctional (that is, over- or under-expressed) in solid tumors, when compared to healthy human subjects. This offers the opportunity to detect early tumors by liquid biopsies. This approach is of particular advantage for the early detection of pancreatic cancer, which is a "silent killer". We have developed fluorescence nanobiosensors for ultrasensitive (sub-femtomolar) arginase and protease detection, consisting of water-dispersible Fe/Fe3 O4 core/shell nanoparticles and two tethered fluorescent dyes: TCPP (Tetrakis(4-carboxyphenyl)porphyrin) and cyanine 5...
May 18, 2018: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/29782352/an-update-on-the-management-of-pancreatic-neuroendocrine-tumors
#3
Limin Gao, Nikola S Natov, Kevin P Daly, Faisal Masud, Sadia Chaudhry, Mark J Sterling, Muhammad W Saif
Pancreatic neuroendocrine tumors (PNETs) are a rare and heterogeneous group of neoplasia and differ in their clinical presentation, behavior, and prognosis based on both histological features and cancer stage at the time of diagnosis. Although small-sized tumors can be surgically resected, locally advanced and metastatic tumors confer a poor prognosis. In addition, only limited treatment options are available to the latter group of patients with PNETs, such as hormonal analogs, cytotoxic agents, and targeted therapy...
May 8, 2018: Anti-cancer Drugs
https://www.readbyqxmd.com/read/29782008/de-novo-generation-of-somatic-stem-cells-by-yap-taz
#4
Tito Panciera, Luca Azzolin, Daniele Di Biagio, Antonio Totaro, Michelangelo Cordenonsi, Stefano Piccolo
Here we present protocols to isolate primary differentiated cells and turn them into stem/progenitor cells (SCs) of the same lineage by transient expression of the transcription factor YAP. With this method, luminal differentiated (LD) cells of the mouse mammary gland are converted into cells that exhibit molecular and functional properties of mammary SCs. YAP also turns fully differentiated pancreatic exocrine cells into pancreatic duct-like progenitors. Similarly, to endogenous, natural SCs, YAP-induced stem-like cells ("ySCs") can be eventually expanded as organoid cultures long term in vitro, without further need of ectopic YAP/TAZ, as ySCs are endowed with a heritable self-renewing SC-like state...
May 7, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29781720/supplementation-of-vitamin-d-deficiency-in-patients-with-neuroendocrine-tumors-using-over-the-counter-vitamin-d3-preparations
#5
Helen L Robbins, Megan Symington, Barbara Mosterman, Josie Goodby, Louise Davies, Georgios K Dimitriadis, Gregory Kaltsas, Harpal S Randeva, Martin O Weickert
Vitamin D (vit-D) deficiency is highly prevalent in patients with gastro-entero-pancreatic neuroendocrine tumors (GEP-NET) and has been linked to reduced overall survival. We here assessed the vit-D status in 183 patients with GEP-NET at the time of their first presentation in the ARDEN NET Centre. We further examined the effect of simple advice to increase vit-D intake using over-the-counter vit-D preparations [colecalciferol (Vit-D3), 1,000-2,000 units/day], over a prospective observation period of 24 mo...
May 21, 2018: Nutrition and Cancer
https://www.readbyqxmd.com/read/29781033/microarray-analysis-of-circular-rna-expression-profiles-associated-with-gemcitabine-resistance-in-pancreatic-cancer-cells
#6
Chao Xu, Yue Yu, Fei Ding
Pancreatic cancer (PC) is one of the most malignant tumors of the digestive system due to its rapid progression, metastasis and resistance to chemotherapy. Gemcitabine (GEM) chemotherapy is the first‑choice treatment for advanced PC. However, the effect of GEM‑based chemotherapy on PC is limited due to the development of chemoresistance, and the molecular mechanisms underlying this resistance have yet to be investigated. Circular RNAs (circRNAs), which can function as microRNA sponges, have been found to be involved in the development of several types of cancer...
May 17, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29779317/-the-expression-of-klk7-in-pancreatic-cancer-and-the-effects-on-the-biological-behavior-of-pancreatic-cancer-cells
#7
S L Zheng, M Y Feng, G Yang, G B Xiong, L F Zheng, T P Zhang, Y P Zhao
Objective: To investigate the expression of KLK7 in pancreatic cancer and its clinical significance. Methods: Immunohistochemistry was used to detect the expression of KLK7 protein in pancreatic cancer tissue microarray with 92 samples. Statistical analysis of the relationship between KLK7 and clinicopathological characteristics was finished. Pancreatic cancer cell lines were infected with lentiviuses in order to get cells with KLK7 stable overexpression.KLK7-siRNA was transfected into pancreatic cancer cells to knock down KLK7...
May 1, 2018: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/29779313/-curative-effect-analysis-of-bile-reinfusion-combined-with-enteral-nutrition-support-before-surgery-of-hilar-cholangiocarcinoma
#8
P Song, L Mao, X J Bian, T Zhou, Y Y Fan, J Zhang, M Xie, Y D Qiu
Objective: To investigate the clinical effect of bile reinfusion combined with enteral nutrition support before surgery for hilar cholangiocarcinoma. Methods: A retrospective analysis of patients with hilar cholangiocarcinoma who underwent surgical treatment at Nanjing Drum Tower Hospital Hepato-biliary-pancreatic Surgery Department from July 2010 to August 2017 was completed.A total of 52 cases were finally enrolled in our study.All the patients included, on the basis of whether they received preoperative drainage and bile reinfusion, were divided into non-drainage group( n =15) and drainage group( n =37)...
May 1, 2018: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/29778616/routine-portal-vein-resection-for-pancreatic-adenocarcinoma-shows-no-benefit-in-overall-survival
#9
Fritz Klein, Finja Berresheim, Matthäus Felsenstein, Thomas Malinka, Uwe Pelzer, Timm Denecke, Johann Pratschke, Marcus Bahra
BACKGROUND: Extended pancreatic resections including resections of the portal (PV) may nowadays be performed safely. Limitations in distinguishing tumor involvement from inflammatory adhesions however lead to portal vein resections (PVR) without evidence of tumor infiltration in the final histopathological examination. The aim of this study was to analyze the impact of these "false negative" resections on operative outcome and long-term survival. METHODS: 40 patients who underwent pancreatic resection with PVR for pancreatic adenocarcinoma (PA) without tumor infiltration of the PV (PVR-group) were identified...
May 9, 2018: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29778400/stromal-heterogeneity-in-pancreatic-cancer-and-chronic-pancreatitis
#10
Lena Haeberle, Katja Steiger, Anna Melissa Schlitter, Sami Alexander Safi, Wolfram Trudo Knoefel, Mert Erkan, Irene Esposito
BACKGROUND/OBJECTIVES: An abundant stromal reaction is a hallmark of pancreatic ductal adenocarcinoma (PDAC) and chronic pancreatitis (CP). The cells mainly responsible for the stromal reaction are activated pancreatic stellate cells (PSCs). Despite their crucial role, PSCs are not well characterized. PSCs share characteristics with the better-known hepatic stellate cells (HSCs). The aim of this study was a detailed analysis of PSCs in PDAC and CP. METHODS: Whole-slide specimens of CP (n = 12) and PDAC (n = 10) were studied by histochemistry and immunohistochemistry...
May 12, 2018: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/29778232/nuclear-bap1-loss-is-common-in-intrahepatic-cholangiocarcinoma-and-a-subtype-of-hepatocellular-carcinoma-but-rare-in-pancreatic-ductal-adenocarcinoma
#11
Asmaa Mosbeh, Khalil Halfawy, Wael S Abdel-Mageed, Dina Sweed, Mohamed H Abdel Rahman
Deletion in the 3p21 region, the chromosomal location of BAP1, has been reported in a subset of hepatocellular carcinoma (HCC), biliary and pancreatic cancers. This suggests that BAP1 could play a role in the pathogenesis of these tumors. We assessed the frequency of BAP1 loss by immunohistochemistry in 103 hepatic, biliary and pancreatic cancers. We also assessed chromosomal alterations in the BAP1 region in the same tumors by genotyping. We identified high frequency 4/8 (50%) of BAP1 loss in intrahepatic cholangicarcinoma (ICC)...
August 2018: Cancer Genetics
https://www.readbyqxmd.com/read/29777904/axed-muc4-muc4-x-aggravates-pancreatic-malignant-phenotype-by-activating-integrin-%C3%AE-1-fak-erk-pathway
#12
Rahat Jahan, Muzafar A Macha, Satyanarayana Rachaghani, Srustidhar Das, Lynette M Smith, Sukhwinder Kaur, Surinder K Batra
Alternative splicing is evolving as an eminent player of oncogenic signaling for tumor development and progression. Mucin 4 (MUC4), a type I membrane-bound mucin, is differentially expressed in pancreatic cancer (PC) and plays a critical role in its progression and metastasis. However, the molecular implications of MUC4 splice variants during disease pathogenesis remain obscure. The present study delineates the pathological and molecular significance of a unique splice variant of MUC4, MUC4/X, which lacks the largest and polymorphic exon 2, along with exon 3...
May 16, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29777452/revision-of-surgical-margin-under-frozen-section-to-achieve-r0-status-on-survival-in-patients-with-pancreatic-cancer
#13
Zi Yin, Yu Zhou, Baohua Hou, Tingting Ma, Min Yu, Chuanzhao Zhang, Xin Lu, Zhixiang Jian
OBJECTIVE: The aim is to investigate whether additional resection based on intraoperative frozen section (FS) to a secondary R0(s) status are associated with different long-term survivals in pancreatic cancer patients, comparing to those with R1 or primary R0(p) status. METHODS: A systematic literature search (PubMed, Embase, Science Citation Index, Springer-Link, and Cochrane Central Register of Controlled Trials) was performed to identify all studies published up to June 2017...
May 18, 2018: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/29775598/selective-cytotoxicity-of-the-nampt-inhibitor-fk866-toward-gastric-cancer-cells-with-markers-of-the-epithelial-mesenchymal-transition-due-to-loss-of-naprt
#14
Jooyoung Lee, Hyosil Kim, Jae Eun Lee, Su-Jin Shin, Sejin Oh, Sungjin Kwon, Hakhyun Kim, Yoon Young Choi, Michael A White, Soonmyung Paik, Jae-Ho Cheong, Hyun Seok Kim
BACKGROUND & AIMS: Markers of the epithelial-mesenchymal transition (EMT) in gastric tumor tissues are associated with poor outcomes of patients. We performed a screen to identify pharmacologic compounds that kill gastric cancer cells with EMT-associated gene expression patterns and investigate their mechanisms. METHODS: We identified 29 gastric cancer cell lines with gene expression signature previously associated with an EMT subtype, based on data from RNA sequence analyses, and confirmed their mesenchymal phenotypes of 7 lines (Hs746T, SNU1750, MKN1, SK4, SNU484, SNU668, and YCC11), based in invasive activity and protein markers...
May 15, 2018: Gastroenterology
https://www.readbyqxmd.com/read/29774930/-advertent-problems-about-gastric-stump-cancer-surgery
#15
Han Liang
Due to different disease background of gastric stump cancer(GSC) patients (benign or malignant lesion, reconstruction of digestive tract, etc.), the GSC surgical procedure and the difficulty of lymphadenectomy are also different. The extent of radical lymphadenectomy for gastric stump cancer should extend beyond D2 lymphadenectomy, according to the different backgrounds of initial disease, reconstructions, and tumor location. A lymphadenectomy should include the lymph nodes in anterior (No.17) and posterior (No...
May 25, 2018: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/29774075/plectin-targeted-liposomes-enhance-the-therapeutic-efficacy-of-a-parp-inhibitor-in-the-treatment-of-ovarian-cancer
#16
Siva Sai Krishna Dasa, Galina Diakova, Ryo Suzuki, Anne M Mills, Michael F Gutknecht, Alexander L Klibanov, Jill K Slack-Davis, Kimberly A Kelly
Advances in genomics and proteomics drive precision medicine by providing actionable genetic alterations and molecularly targeted therapies, respectively. While genomic analysis and medicinal chemistry have advanced patient stratification with treatments tailored to the genetic profile of a patient's tumor, proteomic targeting has the potential to enhance the therapeutic index of drugs like poly(ADP-ribose) polymerase (PARP) inhibitors. PARP inhibitors in breast and ovarian cancer patients with BRCA1/2 mutations have shown promise...
2018: Theranostics
https://www.readbyqxmd.com/read/29773761/surgical-treatment-of-pancreatic-cancer
#17
Wioletta Masiak-Segit, Karol Rawicz-Pruszyński, Magdalena Skórzewska, Wojciech P Polkowski
The only way to cure the patient with adenocarcinoma of the pancreas (RT) is surgical excision of the tumor. The standard surgical treatment of resectable pancreatic carcinoma is considered the classic pancreatoduodenectomy (PD) with the Kausch- Whipple procedure, or the pylorus-preserving PD with the Traverso-Longmire method. The most difficult technically and at the same time the most important PD stage from an oncological point of view is the separation of the head of the pancreas from the superior mesenteric artery...
April 30, 2018: Polski Przeglad Chirurgiczny
https://www.readbyqxmd.com/read/29773669/unresolved-endoplasmic-reticulum-stress-engenders-immune-resistant-latent-pancreatic-cancer-metastases
#18
Arnaud Pommier, Naishitha Anaparthy, Nicoletta Memos, Z Larkin Kelley, Alizée Gouronnec, Ran Yan, Cédric Auffray, Jean Albrengues, Mikala Egeblad, Christine A Iacobuzio-Donahue, Scott K Lyons, Douglas T Fearon
The majority of patients with pancreatic ductal adenocarcinoma (PDA) develop metastatic disease after resection of their primary tumor. We found that livers from patients and mice with PDA harbor single, disseminated cancer cells (DCCs) lacking expression of cytokeratin-19 (CK19) and major histocompatibility complex class I (MHCI). We created a mouse model to determine how these DCCs develop. Intra-portal injection of immunogenic PDA cells into pre-immunized mice seeded livers only with single, non-replicating DCCs that were CK19- and MHCI- The DCCs exhibited an endoplasmic reticulum (ER) stress response but, paradoxically lacked both inositol-requiring enzyme 1α activation and expression of the spliced form of transcription factor XBP1 (XBP1s)...
May 17, 2018: Science
https://www.readbyqxmd.com/read/29772559/gitr-domain-inside-car-co-stimulates-activity-of-car-t-cells-against-cancer
#19
Vita M Golubovskaya, Robert Berahovich, Qumiao Xu, Hua Zhou, Shirley Xu, Jasper Guan, Hizkia Harto, Le Li, Lijun Wu
T cells expressing Chimeric antigen receptors or CAR-T cells are used as a novel treatment against hematological and solid cancers. In this report, we designed CAR with glucocorticoid-induced TNFR-related protein (GITR) co-stimulatory domain to study its ability to co-activate CAR-T cells. EGFR-GITR-CD3 CAR-T cells were cytotoxic against EGFR-positive: pancreatic and ovarian cancer cells but not against EGFR-negative cancer cells. The cytotoxic activity of EGFR-GITR-CD3 CAR-T cells was comparable or better than EGFR-28-CD3 or EGFR-41BB-CD3 CAR-T cells...
June 1, 2018: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/29772434/the-interaction-of-long-non-coding-rna-miat-and-mir-133-play-a-role-in-the-proliferation-and-metastasis-of-pancreatic-carcinoma
#20
Ting-Fu Li, Jian Liu, Shi-Jie Fu
Pancreatic cancer (PC) is one of the most aggressive malignancies in humans. Despite advances in early detection and treatment of PC, the prognosis is still limited. LncRNA myocardial infarction-associated transcript (MIAT) is found abnormally expressed in a variety of cancers. However, the role of MIAT in PC is still unknown. This study aimed to explore whether MIAT was related to the progression of PC and the underlying mechanism. Bioinformatics analysis and luciferase reporter assay validated that miR-133 may target MIAT 3'-UTR...
May 14, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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