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https://www.readbyqxmd.com/read/28087712/pdx1-dynamically-regulates-pancreatic-ductal-adenocarcinoma-initiation-and-maintenance
#1
Nilotpal Roy, Kenneth K Takeuchi, Jeanine M Ruggeri, Peter Bailey, David Chang, Joey Li, Laura Leonhardt, Sapna Puri, Megan T Hoffman, Shan Gao, Christopher J Halbrook, Yan Song, Mats Ljungman, Shivani Malik, Christopher V E Wright, David W Dawson, Andrew V Biankin, Matthias Hebrok, Howard C Crawford
Aberrant activation of embryonic signaling pathways is frequent in pancreatic ductal adenocarcinoma (PDA), making developmental regulators therapeutically attractive. Here we demonstrate diverse functions for pancreatic and duodenal homeobox 1 (PDX1), a transcription factor indispensable for pancreas development, in the progression from normal exocrine cells to metastatic PDA. We identify a critical role for PDX1 in maintaining acinar cell identity, thus resisting the formation of pancreatic intraepithelial neoplasia (PanIN)-derived PDA...
December 15, 2016: Genes & Development
https://www.readbyqxmd.com/read/28087571/pancreatic-tumors-exhibit-enhanced-extracellular-protein-catabolism
#2
(no author information available yet)
PDACs gain necessary amino acids via macropinocytosis and degradation of extracellular proteins.
January 13, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28087305/circulating-interleukin-18-il-18-is-a-predictor-of-response-to-gemcitabine-based-chemotherapy-in-patients-with-pancreatic-adenocarcinoma
#3
Çiğdem Usul Afsar, Mehmet Karabulut, Senem Karabulut, Halil Alis, Murat Gonenc, Nergiz Dagoglu, Murat Serilmez, Faruk Tas
BACKGROUND: This study was conducted to investigate the serum levels of interleukin-18 (IL-18) in patients with pancreatic adenocarcinoma (PA) and the relationship with tumor progression and known prognostic parameters. METHODS: Thirty-three patients with PA were studied. Serum samples were obtained on first admission before any treatment. Serum IL-18 levels were analyzed using enzyme-linked immunosorbent assay (ELISA). Age- and sex-matched 30 healthy controls were included in the analysis...
January 10, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28086830/sigma-2-receptor-agonist-derivatives-of-1-cyclohexyl-4-3-5-methoxy-1-2-3-4-tetrahydronaphthalen-1-yl-propyl-piperazine-pb28-induce-cell-death-via-mitochondrial-superoxide-production-and-caspase-activation-in-pancreatic-cancer
#4
Maria Laura Pati, John R Hornick, Mauro Niso, Francesco Berardi, Dirk Spitzer, Carmen Abate, William Hawkins
BACKGROUND: Despite considerable efforts by scientific research, pancreatic cancer is the fourth leading cause of cancer related mortalities. Sigma-2 receptors, which are overexpressed in several tumors, represent promising targets for triggering selective pancreatic cancer cells death. METHODS: We selected five differently structured high-affinity sigma-2 ligands (PB28, PB183, PB221, F281 and PB282) to study how they affect the viability of diverse pancreatic cancer cells (human cell lines BxPC3, AsPC1, Mia PaCa-2, and Panc1 and mouse Panc-02, KCKO and KP-02) and how this is reflected in vivo in a tumor model...
January 13, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28079824/inflammatory-myofibroblastic-tumors-of-the-pancreas-in-children-a-case-report-and-literature-review
#5
Hsien-Kuan Liu, Yung-Cheng Lin, Ming-Lun Yeh, Yaw-Sen Chen, Yu-Tsun Su, Ching-Chung Tsai
INTRODUCTION: Inflammatory myofibroblastic tumors are an uncommon neoplasm, which are very rarely located in the pancreas. Clinically and radiologically, this rare pancreatic tumor presents as an abdominal mass lesion that mimics other pancreatic tumors, and should therefore be considered in the differential diagnosis of pancreatic tumors. CLINICAL FINDINGS AND DIAGNOSIS: The 15-year-old boy complained of abdominal pain over the left upper quadrant with intermittent fever for 7 days...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28079795/pancreatic-groove-cancer
#6
Yuan-Hao Ku, Shih-Chin Chen, Bor-Uei Shyr, Rheun-Chuan Lee, Yi-Ming Shyr, Shin-E Wang
Pancreatic groove cancer is very rare and can be indistinguishable from groove pancreatitis. This study is to clarify the characteristics, clinical features, managements, and survival outcomes of this rare tumor.Brief descriptions were made for each case of pancreatic groove cancer encountered at our institute. Individualized data of pancreatic groove cancer cases described in the literature were extracted and added to our database to expand the study sample size for a more complete analysis.A total of 33 patients with pancreatic groove cancer were included for analysis, including 4 cases from our institute...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28078482/irreversible-electroporation-as-treatment-of-locally-advanced-and-as-margin-accentuation-in-borderline-resectable-pancreatic-adenocarcinoma
#7
P Marsanic, A Mellano, A Sottile, M De Simone
In recent years, many local ablation technologies based on thermal damage have been used in the treatment of locally advanced pancreatic carcinoma (LAPC) and borderline resectable pancreatic carcinoma (BLRPC). However, they are associated with major complications because of possible vascular and ductal damage. Irreversible electroporation (IRE) is a nonthermal ablation technology that seems safe near vital vascular and ductal structures. IRE could be used as exclusive treatment of LAPC (en situ to IRE) after induction chemotherapy In BLRPC, surgery is not really radical in 6% of patients (microscopic residual) and local recurrences occur in 11-42% of apparent radical resections...
January 11, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28078125/changing-paradigm-in-pancreatic-cancer-from-adjuvant-to-neoadjuvant-chemoradiation
#8
Justin D Anderson, Wen Wan, Brian J Kaplan, Jennifer Myers, Emma C Fields
BACKGROUND: Historically, management of pancreatic cancer has been determined based on whether the tumor was amenable to resection and all patients deemed resectable received curative intent surgery followed by adjuvant therapy with chemotherapy (CT) ± RT. However, patients who undergo resection with microscopic (R1) positive margins have inferior rates of survival. The purpose of this study is to identify patients who have undergone pancreatectomy for pancreatic cancer, determine the surgical margins, types of adjuvant therapies given and patterns of failure...
December 2016: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28077129/hypoglycemic-and-pancreatic-protective-effects-of-portulaca-oleracea-extract-in-alloxan-induced-diabetic-rats
#9
Basma K Ramadan, Mona F Schaalan, Amina M Tolba
BACKGROUND: Diabetes is a major public health concern. In spite of continuous new drug development to treat diabetes, herbal remedies remain a potential adjunct therapy to maintain better glycemic control while also imparting few side-effects. Portulaca oleracea has been traditionally used to manage several diseases due to the anti-oxidant and anti-atherogenic effects it imparts. To better understand the mechanisms associated with potential protective effect of P. oleracea extract against diabetes, alloxan-induced diabetic rats were used in this study...
January 11, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28076018/invited-commentary-on-tumor-vessel-relationships-in-pancreatic-ductal-adenocarcinoma-at-multidetector-ct-with-response-from-dr-zaky-and-colleagues
#10
Keith D Lillemoe
No abstract text is available yet for this article.
January 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28075464/downregulation-of-the-n-myc-downstream-regulated-gene-1-is-related-to-enhanced-proliferation-invasion-and-migration-of-pancreatic-cancer
#11
Gang Cen, Kundong Zhang, Jun Cao, Zhengjun Qiu
The N-myc downstream regulated gene 1 (NDRG1) is differently expressed in human malignancies according to the tumor type. We investigated the expression of NDRG1 in pancreatic cancer tissues and cell lines as well as how it affects tumor growth, invasion and migration in pancreatic cancer cells. Experimental groups included NDRG1 overexpression and knockdown pancreatic cancer cell lines. Lentivirus-based empty vector transfected cells (NC group) were considered control groups. Proliferation, invasion and migration related proteins such as STAT3, MMPs, PTEN, PI3K/AKT were assessed by CCK-8, Transwell assay and western blotting...
January 5, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28075452/a-novel-pathway-in-nsclc-cells-mir%C3%A2-191-targeting-nfia-is-induced-by-chronic-hypoxia-and-promotes-cell-proliferation-and-migration
#12
Jia Zhao, Cheng-Rui Qiao, Zheng Ding, Yin-Liang Sheng, Xiang-Nan Li, Yang Yang, Deng-Yan Zhu, Chun-Yang Zhang, Dong-Lei Liu, Kai Wu, Song Zhao
MicroRNAs (miRs) have emerged as being important in cancer biology. miR‑191 is a conserved miRNA, which has been investigated in detail and is reported to be induced by hypoxia-inducible factor (HIF)‑1α and has an contributory action in the progression of breast, hepatic and pancreatic cancer. However, the effects of miR‑191 in the progression of lung cancer are a subject of debate. In the present study, it was found that the expression of miR-191 was significantly upregulated in non‑small cell lung cancer (NSCLC) cells in patients in vivo...
January 4, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28074864/a-novel-monoclonal-antibody-targeting-coxsackie-virus-and-adenovirus-receptor-inhibits-tumor-growth-in-vivo
#13
Manabu Kawada, Hiroyuki Inoue, Masunori Kajikawa, Masahito Sugiura, Shuichi Sakamoto, Sakiko Urano, Chigusa Karasawa, Ihomi Usami, Mitsuru Futakuchi, Tohru Masuda
To create a new anti-tumor antibody, we conducted signal sequence trap by retrovirus-meditated expression method and identified coxsackie virus and adenovirus receptor (CXADR) as an appropriate target. We developed monoclonal antibodies against human CXADR and found that one antibody (6G10A) significantly inhibited the growth of subcutaneous as well as orthotopic xenografts of human prostate cancer cells in vivo. Furthermore, 6G10A also inhibited other cancer xenografts expressing CXADR, such as pancreatic and colorectal cancer cells...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28074010/tumors-block-pain-with-cxcl12
#14
Nancy R Gough
The chemokine CXCL12 released from early stage pancreatic cancer recruits Schwann cells and suppresses pain signaling.
January 10, 2017: Science Signaling
https://www.readbyqxmd.com/read/28073003/employing-metabolism-to-improve-the-diagnosis-and-treatment-of-pancreatic-cancer
#15
REVIEW
Christopher J Halbrook, Costas A Lyssiotis
Pancreatic ductal adenocarcinoma is on pace to become the second leading cause of cancer-related death. The high mortality rate results from a lack of methods for early detection and the inability to successfully treat patients once diagnosed. Pancreatic cancer cells have extensively reprogrammed metabolism, which is driven by oncogene-mediated cell-autonomous pathways, the unique physiology of the tumor microenvironment, and interactions with non-cancer cells. In this review, we discuss how recent efforts delineating rewired metabolic networks in pancreatic cancer have revealed new in-roads to develop detection and treatment strategies for this dreadful disease...
January 9, 2017: Cancer Cell
https://www.readbyqxmd.com/read/28072692/role-of-biochemistry-and-cytological-analysis-of-cyst-fluid-for-the-differential-diagnosis-of-pancreatic-cysts-a-retrospective-cohort-study
#16
Ozlem Mutluay Soyer, Bulent Baran, Asli Ciftcibasi Ormeci, Davut Sahin, Suut Gokturk, Sami Evirgen, Rafet Basar, Pinar Firat, Filiz Akyuz, Kadir Demir, Fatih Besisik, Sabahattin Kaymakoglu, Cetin Karaca
BACKGROUND: Management of pancreatic cysts is based on neoplastic-nonneoplastic discrimination. Endoscopic ultrasound (EUS) enables to differentiate neoplastic-nonneoplastic lesions and also allows fine-needle aspiration (FNA). In this study, we aim to assess feasibility and clinical relevance of cytological and biochemical analysis in differential diagnosis of cystic pancreatic lesions in patients who had undergone endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) due to pancreatic cysts...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28071891/dual-enzymatic-reaction-assisted-gemcitabine-delivery-systems-for-programmed-pancreatic-cancer-therapy
#17
Haijie Han, Daniel Valdeperez, Qiao Jin, Bin Yang, Zuhong Li, Yulian Wu, Beatriz Pelaz, Wolfgang J J Parak, Jian Ji
Dual enzymatic reactions were introduced to fabricate programmed gemcitabine (GEM) nanovectors for targeted pancreatic cancer therapy. Dual-enzyme sensitive GEM nanovectors were prepared by conjugation of matrix metalloproteinase-9 (MMP-9) detachable poly(ethylene glycol) (PEG), cathepsin B cleavable GEM, and targeting ligand CycloRGD to CdSe/ZnS quantum dots (QDs). The GEM nanovectors decorated with PEG corona could avoid nonspecific interactions and exhibit prolonged blood circulation time. After GEM nanovectors were accumulated in tumor tissue by the enhanced permeability and retention (EPR) effect, the PEG corona can be removed by overexpressed MMP-9 in tumor tissue and RGD would be exposed, which was capable of facilitating cellular internalization...
January 10, 2017: ACS Nano
https://www.readbyqxmd.com/read/28071719/quantitative-proteomic-profiling-of-the-extracellular-matrix-of-pancreatic-islets-during-the-angiogenic-switch-and-insulinoma-progression
#18
Alexandra Naba, Karl R Clauser, D R Mani, Steven A Carr, Richard O Hynes
The angiogenic switch, the time at which a tumor becomes vascularized, is a critical step in tumor progression. Indeed, without blood supply, tumors will fail to grow beyond 1 mm(3) and are unlikely to disseminate. The extracellular matrix (ECM), a major component of the tumor microenvironment, is known to undergo significant changes during angiogenesis and tumor progression. However the extent of these changes remains unknown. In this study, we used quantitative proteomics to profile the composition of the ECM of pancreatic islets in a mouse model of insulinoma characterized by a precisely timed angiogenic switch...
January 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28071631/profile-of-pancreatic-tumors-at-a-tertiary-care-center
#19
P Nandan, M Nirupama, J R Kini, S Gopal, K K Sahu, S Rai
BACKGROUND: Pancreas, a relatively inaccessible organ, poses diagnostic difficulties with overlapping presentation among benign and malignant tumors. In the present study, pancreatic aspirates obtained by computed tomography (CT) guided procedures were used for cytodiagnosis. Our study aims at correlating clinical, cytological, biochemical, and histopathological results in obtaining a final diagnosis. METHODOLOGY: A retrospective study of 2 years was done which included 32 cases of pancreatic tumors at a tertiary care center...
April 2016: Indian Journal of Cancer
https://www.readbyqxmd.com/read/28070829/functional-analysis-of-kif20a-a-potential-immunotherapeutic-target-for-glioma
#20
Katsuya Saito, Shigeki Ohta, Yutaka Kawakami, Kazunari Yoshida, Masahiro Toda
Kinesin family member 20A (KIF20A), an ideal cancer-testis antigen, was reported to be a promising immunotherapeutic target for pancreatic cancers. Clinical trials of KIF20A peptide vaccine immunotherapy have been conducted against pancreatic cancers. To demonstrate the efficacy of KIF20A as a candidate molecular target for gliomas, we analyzed the expression and function of KIF20A in gliomas. Western blot and quantitative PCR analyses showed that KIF20A expression in glioma cell lines and glioma tissues was high compared with that found in a normal brain...
January 9, 2017: Journal of Neuro-oncology
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