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https://www.readbyqxmd.com/read/29151072/the-lactate-receptor-hcar1-gpr81-contributes-to-doxorubicin-chemoresistance-via-abcb1-transporter-up-regulation-in-human-cervical-cancer-hela-cells
#1
W Wagner, K D Kania, A Blauz, W M Ciszewski
The lactate receptor, also known as hydroxycarboxylic acid receptor 1 (HCAR1/GPR81), plays a vital role in cancer biology. Recently, HCAR1 was reported to enhance metastasis, cell growth, and survival of pancreatic, breast, and cervical cancer cells. This study showed, for the first time, the mechanism of HCAR1-mediated chemoresistance to doxorubicin through regulation of ABCB1 transporter. We observed the HCAR1 agonists L-lactate, D-lactate and 3,5-dihydroxybenzoic acid (DHBA) induced up-regulation of ABCB1...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29149720/a-robust-strategy-for-preparation-of-sequential-stimuli-responsive-block-copolymer-prodrugs-via-thiolactone-chemistry-to-overcome-multiple-anticancer-drug-delivery-barriers
#2
Wendong Ke, Wei Yin, Zengshi Zha, Jean Felix Mukerabigwi, Weijian Chen, Yuheng Wang, Chuanxin He, Zhishen Ge
Block copolymer prodrugs (BCPs) have attracted considerable attentions in clinical translation of nanomedicine owing to their self-assembly into well-defined core-shell nanoparticles for improved pharmacokinetics, stability in blood circulation without drug leakage, and optimized biodistribution. However, a cascade of physiological barriers against specific delivery of drugs into tumor cells limit the final therapeutic efficacy. Herein, we report a robust and facile strategy based on thiolactone chemistry to fabricate well-defined BCPs with sequential tumor pH-promoted cellular internalization and intracellular stimuli-responsive drug release...
November 9, 2017: Biomaterials
https://www.readbyqxmd.com/read/29149451/transcriptional-alterations-in-hereditary-and-sporadic-nonfunctioning-pancreatic-neuroendocrine-tumors-according-to-genotype
#3
Xavier M Keutgen, Suresh Kumar, Sudheer Gara, Myriem Boufraqech, Sunita Agarwal, Ralph H Hruban, Naris Nilubol, Martha Quezado, Richard Finney, Maggie Cam, Electron Kebebew
BACKGROUND: Nonfunctioning pancreatic neuroendocrine tumors (NFPanNETs) may be sporadic or inherited because of germline mutations associated with von Hippel-Lindau disease (VHL) or multiple endocrine neoplasia type 1 (MEN1). The clinical behavior of NFPanNETs is difficult to predict, even in tumors of the same stage and grade. The authors analyzed genotype-specific patterns of transcriptional messenger RNA (mRNA) levels of NFPanNETs to understand the molecular features that determine PanNET phenotype...
November 17, 2017: Cancer
https://www.readbyqxmd.com/read/29149426/relationship-between-lat1-expression-and-resistance-to-chemotherapy-in-pancreatic-ductal-adenocarcinoma
#4
Bolag Altan, Kyoichi Kaira, Akira Watanabe, Norio Kubo, Pinjie Bao, Gantumur Dolgormaa, Erkhem-Ochir Bilguun, Kenichiro Araki, Yoshikatsu Kanai, Takehiko Yokobori, Tetsunari Oyama, Masahiko Nishiyama, Hiroyuki Kuwano, Ken Shirabe
PURPOSE: L-type amino acid transporter 1 (LAT1) is linked to tumor cell proliferation, angiogenesis, and survival in various human cancers. Although the expression of LAT1 was identified as a significant prognostic predictor after surgery in patients with pancreatic ductal adenocarcinoma (PDAC), little is known about the clinical significance of LAT1 as a chemotherapeutic resistance factor in PDAC. METHODS: A total of 110 patients with surgically resected PDAC were retrospectively reviewed as the training set...
November 17, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/29149259/pancreatic-cancer-incidence-trends-evidence-from-the-surveillance-epidemiology-and-end-results-seer-population-based-data
#5
Vanessa L Gordon-Dseagu, Susan S Devesa, Michael Goggins, Rachael Stolzenberg-Solomon
Background: Annual pancreatic cancer incidence rates have been increasing. We examine pancreatic cancer incidence trends by demographics and histologic type. Methods: Data from the Surveillance, Epidemiology and End Results (SEER) registries were available to assess temporal trends and pancreatic cancer rates from 1974 to 2013. Results: Pancreatic cancer incidence rates declined between the 1970s and 1990s but increased from 1994 to 2013 among White males...
November 14, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/29149107/treponema-denticola-chymotrypsin-like-proteinase-may-contribute-to-orodigestive-carcinogenesis-through-immunomodulation
#6
Mikko T Nieminen, Dyah Listyarifah, Jaana Hagström, Caj Haglund, Daniel Grenier, Dan Nordström, Veli-Jukka Uitto, Marcela Hernandez, Tülay Yucel-Lindberg, Taina Tervahartiala, Mari Ainola, Timo Sorsa
BACKGROUND: Periodontal pathogens have been linked to oral and gastrointestinal (orodigestive) carcinogenesis. However, the exact mechanisms remain unknown. Treponema denticola (Td) is associated with severe periodontitis, a chronic inflammatory disease leading to tooth loss. The anaerobic spirochete Td is an invasive bacteria due to its major virulence factor chymotrypsin-like proteinase. Here we aimed to investigate the presence of Td chymotrypsin-like proteinase (Td-CTLP) in major orodigestive tumours and to elucidate potential mechanisms for Td to contribute to carcinogenesis...
November 16, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/29147902/expression-of-dj-1-in-cancer-cells-its-correlation-with-clinical-significance
#7
Takahiko Kawate, Benio Tsuchiya, Keiichi Iwaya
Upregulation of DJ-1 mRNA is commonly observed in various human cancers such as ductal carcinoma of the breast, non-small cell carcinoma of the lung, pancreatic duct adenocarcinoma, urinary transitional cell carcinoma, and gynecologic carcinoma. At the protein level, intensity and intracellular localization of DJ-1 expression is varied, and the DJ-1 protein regulates cancer progression, clinical aggressiveness, differentiation, cancer cell morphology, and drug sensitivity. Thus, DJ-1 plays a critical role in cancer...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29147491/augmented-expression-levels-of-lncrnas-eccebpa-and-uca1-in-gastric-cancer-tissues-and-their-clinical-significance
#8
Mojdeh Nasrollahzadeh-Khakiani, Modjtaba Emadi-Baygi, Parvaneh Nikpour
Objectives: As the second cause of cancer death, gastric cancer (GC) is one of the eminent dilemmas all over the world, therefore investigating the molecular mechanisms involved in this cancer is pivotal. Unrestricted proliferation is one of the characteristics of cancerous cells, which is due to deficiency in cell regulatory systems. Long non-coding RNAs (lncRNAs) have emerged as critical regulators of the epigenome. lncRNA extra coding CEBPA (ecCEBPA) is involved in DNA methylation...
October 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29147133/allopurinol-in-combination-with-thiopurine-induces-mucosal-healing-and-improves-clinical-and-metabolic-outcomes-in-ibd
#9
Brigitte Moreau, Pierre Clement, Yves Theoret, Ernest G Seidman
Background: Thiopurines, azathioprine (AZA) and 6-mercaptopurine (6-MP) are common maintenance medications for inflammatory bowel disease (IBD). Excessive methylation via thiopurine methyltransferase (TPMT) frequently causes therapeutic failure. Allopurinol reduces excessive 6-methyl-mercaptopurine (6-MMP) while enhancing 6-thioguanine (6-TGN) levels. The aim of this study was to evaluate clinical, metabolic and endoscopic impact of allopurinol in combination with low-dose thiopurine in IBD...
November 2017: Therapeutic Advances in Gastroenterology
https://www.readbyqxmd.com/read/29146599/incretin-based-therapies-and-the-short-term-risk-of-pancreatic-cancer-results-from-two-retrospective-cohort-studies
#10
Mathieu Boniol, Matteo Franchi, Maria Bota, Agnès Leclercq, Joeri Guillaume, Nancy van Damme, Giovanni Corrao, Philippe Autier, Peter Boyle
OBJECTIVE: Concerns have been raised about a possible increased risk of pancreatic cancer associated with incretin-based therapies. We examined the risk of pancreatic cancer among patients with diabetes prescribed incretin drugs. RESEARCH DESIGN AND METHODS: With the use of public health insurance databases of Belgium and Lombardy Region, Italy, we created two retrospective cohorts that included adult patients who were first prescribed an incretin drug or another noninsulin antidiabetic drug (NIAD) from 1 July 2008 to 31 December 2013 in Belgium and from 1 January 2008 to 31 December 2012 in Lombardy Region...
November 16, 2017: Diabetes Care
https://www.readbyqxmd.com/read/29145315/iodine-125-seed-implantation-for-synchronous-pancreatic-metastases-from-hepatocellular-carcinoma-a-case-report-and-literature-review
#11
Junjie Xiong, Selina Kwong Chian, Jiao Li, Xubao Liu
RATIONALE: The image-guided iodine-125 seed implantation has been widely used for a variety of tumors, including prostatic cancer, pulmonary cancer, hepatocellular carcinoma and pancreatic cancer. However, the clinical value of iodine-125 seed implantation for the treatment of pancreatic metastasis from hepatocellular carcinoma has not been reported. We presented the first case with ultrasound-guided iodine-125 seed implantation for this disease. PATIENT CONCERNS: We presented the case of a 48-year-old man patient with primary hepatocellular carcinoma and pancreatic metastasis who was managed with ultrasound-guided iodine-125 seeds implantation...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145206/microrna-expression-profiling-of-pancreatic-cancer-cell-line-l3-6p1-following-b7-h4-knockdown
#12
Yun Qian, Limin Feng, Weigen Wu, Tianhao Weng, Chenyu Hu, Bo Hong, Frederick X C Wang, Lingwei Shen, Qi Wang, Xin Jin, Hangping Yao
BACKGROUND/AIMS: Co-stimulating molecule B7-H4 regulates T cell-mediated immune responses, participates in tumor immune escape, and promotes the proliferation and metastasis of pancreatic cancer cells. However, the specific mechanisms are unclear. MicroRNAs (miRNAs) participated in the pathogenesis and progression of cancer. METHODS: In this study, a microarray technique was used to screen B7-H4-related differentially expressed miRNAs in a pancreatic cancer cell line find those associated with pancreatic cancer...
November 17, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29145151/vildagliptin-loaded-triangular-dna-nanospheres-coated-with-eudragit-for-oral-delivery-and-better-glycemic-control-in-type-2-diabetes-mellitus
#13
Mirza Muhammad Faran Ashraf Baig, Sara Khan, Muhammad Ahsan Naeem, Ghulam Jilany Khan, Muhammad Tayyab Ansari
Diabetes mellitus type 2 is a multidimensional disease associated with poor glycemic control through compromised sensitivity of pancreatic islet α and β cells against glucose and dwindled secretion of insulin which is linked with the quantity of incretin hormones that are abridged by dipeptidyl peptidase-4 (DPP-4) in diseased condition. Vildagliptin (VG) inhibits DPP-4 therefore regulates the incretins that conversely maintains glycemic control. The safe reach and absorption of VG from intestine was dubious...
November 13, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29144798/pancreas-metastases-from-papillary-thyroid-carcinoma-a-review-of-the-literature
#14
Maja Davidson, Randall J Olsen, April A Ewton, Richard J Robbins
OBJECTIVE: Although loco-regional metastases occur in 5-10% of patients with papillary thyroid cancer (PTC), distant metastases are rare, especially to the pancreas. Here we review the literature regarding metastases to the pancreas from PTC and present an illustrative patient. METHODS: The literature search was performed through www.pubmed.org . The information regarding our illustrative case was obtained from the medical records of our institution. RESULTS: Since 1991, 11 cases of pancreas metastases of PTC have been reported...
November 16, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/29144412/pancreatic-cancer-chemoresistance-to-gemcitabine
#15
REVIEW
Manoj Amrutkar, Ivar P Gladhaug
Pancreatic ductal adenocarcinoma (PDAC), commonly referred to as pancreatic cancer, ranks among the leading causes of cancer-related deaths in the Western world due to disease presentation at an advanced stage, early metastasis and generally a very limited response to chemotherapy or radiotherapy. Gemcitabine remains a cornerstone of PDAC treatment in all stages of the disease despite suboptimal clinical effects primarily caused by molecular mechanisms limiting its cellular uptake and activation and overall efficacy, as well as the development of chemoresistance within weeks of treatment initiation...
November 16, 2017: Cancers
https://www.readbyqxmd.com/read/29143916/a-real-world-comparison-of-folfirinox-gemcitabine-plus-nab-paclitaxel-and-gemcitabine-in-advanced-pancreatic-cancers
#16
Ying Wang, Pierre Camateros, Winson Y Cheung
PURPOSE: FOLFIRINOX (FFN), nab-paclitaxel plus gemcitabine (GN), and gemcitabine are three systemic therapies that provide clinically meaningful benefit to patients with unresectable pancreatic cancer (UPC). There are no clinical trials that directly compare the efficacy of all three regimens. In this study, we aim to examine and compare the real-world effectiveness of these treatments. METHODS: Patients diagnosed with UPC who initiated palliative chemotherapy from August 2014 to January 2016 at any one of six cancer centers in British Columbia were identified from the provincial pharmacy...
November 16, 2017: Journal of Gastrointestinal Cancer
https://www.readbyqxmd.com/read/29143898/the-multidisciplinary-approach-to-localized-pancreatic-adenocarcinoma
#17
REVIEW
Hiral D Parekh, Jason Starr, Thomas J George
Pancreatic adenocarcinoma 2030 (PCa) is predicted to be the second leading cause of cancer death in USA by 2030. To date, attempts at early detection have been unsuccessful. Therapies for resectable PCa include surgery followed by adjuvant chemotherapy with or without radiotherapy. Unfortunately, most patients with PCa present with advanced disease and thus only 20% of patients are potentially resectable upon presentation. Improved surgical techniques along with adjuvant combination chemotherapy have improved outcomes for patients with resectable disease...
November 16, 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/29143875/the-role-of-18f-fdg-pet-ct-and-pet-mri-in-pancreatic-ductal-adenocarcinoma
#18
Randy Yeh, Laurent Dercle, Ishan Garg, Zhen Jane Wang, David M Hough, Ajit H Goenka
Pancreatic ductal adenocarcinoma (PDAC) remains a difficult disease to treat and continues to portend a poor prognosis, as most patients are unresectable at diagnosis. 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET) combined with CT (PET/CT) has been a cornerstone in oncological imaging of different cancers; however, the role of PET/CT in PDAC is continually evolving and currently not well established. Studies have shown the potential of PET/CT in guiding the management of patients with PDAC, with possible added benefit over anatomic imaging with CT or MRI in certain scenarios...
November 16, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29143247/using-circulating-tumor-cells-to-evaluate-the-efficacy-of-irreversible-electroporation-for-unresectasble-pancreatic-cancer
#19
Mao Lin, Mohammed Alnaggar, Shu-Zhen Liang, Jian Shi, Li-Zhi Niu, Ji-Bing Chen, Ke-Cheng Xu
We used circulating tumor cells (CTCs) as biomarkers to evaluate the efficacy of pre-irreversible electroporation (IRE) and post-IRE for unresectable pancreatic cancer (PC). Real-time qPCR was used to detect potential biomarker genes in CTCs, and magnetic-activated cell sorting (MACS) and fluorescence-activated cell sorting (FACS) were performed on 43 patients with PC who underwent IRE. Some patients experienced adverse reactions within 30 days of the operation, including arrhythmia (6.9%), intraoperative transient change of blood pressure (25...
November 15, 2017: Immunologic Research
https://www.readbyqxmd.com/read/29142470/relationship-between-autophagy-and-perineural-invasion-clinicopathological-features-and-prognosis-in-pancreatic-cancer
#20
Yan-Hui Yang, Jiang-Bo Liu, Yang Gui, Liang-Liang Lei, Shui-Jun Zhang
AIM: To investigate the relationship between autophagy and perineural invasion (PNI), clinical features, and prognosis in patients with pancreatic cancer. METHODS: Clinical and pathological data were retrospectively collected from 109 patients with pancreatic ductal adenocarcinoma who underwent radical resection at the First Affiliated Hospital of Zhengzhou University from January 2011 to August 2016. Expression levels of the autophagy-related protein microtubule-associated protein 1A/1B-light chain 3 (LC3) and PNI marker ubiquitin carboxy-terminal hydrolase (UCH) in pancreatic cancer tissues were detected by immunohistochemistry...
October 28, 2017: World Journal of Gastroenterology: WJG
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