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https://www.readbyqxmd.com/read/29790189/the-identification-of-a-novel-antibody-for-cd133-using-human-antibody-phage-display
#1
Paige M Glumac, Colleen L Forster, Hong Zhou, Paari Murugan, Shilpa Gupta, Aaron M LeBeau
BACKGROUND: The transmembrane glycoprotein CD133 is believed to be a marker of adult prostate stem cells and cancer stem/initiating cells. Investigating the role of CD133 in the normal biology of the prostate and in cancer is complicated by the lack of a sensitive and accurate antibody for its detection. Here, we describe the characterization of a unique antibody identified using human antibody phage display that can recognize CD133 in both formalin-fixed tissues and cell lines. METHODS: A human single-chain variable fragment (scFv) antibody phage display library possessing a diversity of 8 × 109 was screened against fully glycosylated recombinant CD133...
May 22, 2018: Prostate
https://www.readbyqxmd.com/read/29788534/prospective-evaluation-of-68-ga-dotatate-pet-ct-in-limited-disease-neuroendocrine-tumors-and-or-elevated-serum-neuroendocrine-biomarkers
#2
Sophie Gabriel, Philippe Garrigue, Laetitia Dahan, Frédéric Castinetti, Frédéric Sebag, Karine Baumstark, Cendrine Archange, Jha Abhishek, Karel Pacak, Benjamin Guillet, David Taïeb
CONTEXT: The 68 Ga-labelled somatostatin analogues (68 Ga-DOTA-SSAs) is becoming popular as an important diagnostic tool in neuroendocrine tumors as evidenced by a growing number of reports detailing institutional experience with various DOTA peptides. However, only few prospective studies have compared 68 Ga-DOTA-SSAs and somatostatin receptor scintigraphy (SRS) in gastroenteropancreatic neuroendocrine tumors (GEP-NETs) and pulmonary neuroendocrine tumors. OBJECTIVE: The aim of our prospective study was to perform head-to-head comparison between 68 Ga-DOTATATE PET/CT and standard imaging work-up (SI) that included multiphasic CT, liver MRI, and SRS using single photon emission computed tomography...
May 22, 2018: Clinical Endocrinology
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/29775618/association-between-klotho-expression-and-malignancies-risk-and-progression-a-meta-analysis
#4
Song Mao, Xiaopeng Wang, Liangxia Wu, Dou Zang, Wenjing Shi
BACKGROUND: We assessed the association between tissue klotho protein expression and the risk and progression of malignancies. METHODS: We searched the electronic databases for the studies regarding the relationship between tissue klotho protein expression and risk/progression of malignancies through January 2018. We calculated the pooled odds ratios (ORs) and corresponding 95% confidence intervals (CIs) to evaluate the impact of tissue klotho protein expression on malignancies...
May 17, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29774940/-prognostic-analysis-and-clinicopathological-features-of-20-patients-with-appendiceal-neuroendocrine-neoplasms
#5
Weilin Mao, Yang Lyu, Ning Pu, Jian'ang Li, Baobao Xin, Wenqi Chen, Dayong Jin, Wenhui Lou, Xuefeng Xu
OBJECTIVE: To investigate clinicopathological features and prognostic factors of appendiceal neuroendocrine neoplasms(a-NEN). METHODS: Clinical data of 20 patients diagnosed with a-NEN at Zhongshan Hospital of Fudan University between January 2000 and December 2016 were retrospectively analyzed. Pathological diagnosis was based on the WHO classification criteria of digestive system tumors (2010 edition). Based on the mitotic count and Ki-67 index, a-NENs were divided into grade 1 neuroendocrine tumor (NET G1), grade 2(G2) NET G2) and grade 3 (neuroendocrine carcinoma, NEC)...
May 25, 2018: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/29763717/hepatic-micrometastases-are-associated-with-poor-prognosis-in-patients-with-liver-metastases-from-neuroendocrine-tumors-of-the-digestive-tract
#6
William E Gibson, Raul S Gonzalez, Justin M M Cates, Eric Liu, Chanjuan Shi
Pathologic examination of hepatic metastasectomies from patients with metastatic small intestinal or pancreatic neuroendocrine tumor frequently reveals micrometastases undetectable by radiologic or macroscopic gross examination. This finding raises the possibility that undetectable micrometastases remain in these patients after metastasectomy. Here we examined liver resections for micrometastases and assessed their impact on prognosis. Hepatic metastasectomies from 65 patients with neuroendocrine tumor of the small intestine (N=43) or pancreas (N=22) were reviewed for the presence of micrometastases, which were defined as microscopic tumor foci ≤1mm in greatest dimension...
May 12, 2018: Human Pathology
https://www.readbyqxmd.com/read/29755775/rectal-and-anal-canal-neuroendocrine-tumours
#7
Teresa Raposo André, Margarida Brito, João Geraldes Freire, António Moreira
Neuroendocrine tumors (NETs) are rare, representing 0.5% of all newly diagnosed malignancies. Rectal and anal canal (AC) NETs account for less than 1% of all rectal and AC cancers. Review our institutional experience on NET of the rectum and AC, with emphasis on demographic, histological and treatment features and oncologic outcomes. The study group was identified from the Portuguese Regional South Oncological Registry. From 2000 to 2014, 22 patients with rectal or AC NETs were treated at our institution. Medical records were retrospectively reviewed...
April 2018: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/29746336/resection-of-the-primary-gastrointestinal-neuroendocrine-tumor-improves-survival-with-or-without-liver-treatment
#8
Aaron Lewis, Mustafa Raoof, Philip H G Ituarte, John Williams, Laleh Melstrom, Daneng Li, Byrne Lee, Gagandeep Singh
OBJECTIVE: The aim of this study was to determine outcomes of primary tumor resection in metastatic neuroendocrine tumors across all primary tumor sites. BACKGROUND: Primary tumor resection (PTR) may offer a survival benefit in metastatic gastrointestinal neuroendocrine tumors (GI-NETs); however, few studies have examined the effect of primary site and grade on resection and survival. METHODS: This is a retrospective study of patients with metastatic GI-NETs at presentation between 2005 and 2011 using the California Cancer Registry (CCR) dataset merged with California Office of Statewide Health Planning and Development (OSHPD) inpatient longitudinal database...
May 9, 2018: Annals of Surgery
https://www.readbyqxmd.com/read/29741649/analysis-of-postoperative-recurrence-in-stage-i-iii-midgut-neuroendocrine-tumors
#9
Mauro Cives, Daniel A Anaya, Heloisa Soares, Domenico Coppola, Jonathan Strosberg
Background: Surgery represents the only curative treatment for stage I-III midgut neuroendocrine tumors (NETs). At present, there are very limited data on the risk of postoperative recurrence. The optimal modality, duration and frequency of surveillance have not been well established. In this work, we investigated the long-term risk of recurrence, peak timing of recurrence, and potential predictors of relapse in patients with stage I-III midgut NETs. Methods: We retrospectively evaluated 129 patients with stage I-III midgut NETs who were seen at the Moffitt Cancer Center between 2000 and 2010 following an R0/R1 resection...
March 1, 2018: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/29739787/curation-of-the-pancreatic-ductal-adenocarcinoma-subset-of-the-cancer-genome-atlas-is-essential-for-accurate-conclusions-about-survival-related-molecular-mechanisms
#10
Ivana Peran, Subha Madhavan, Stephen W Byers, Matthew D McCoy
PURPOSE:  Publically available databases, e.g. The Cancer Genome Atlas (TCGA), containing clinical and molecular data from large number of patients are useful in validating the contribution of particular genes to disease mechanisms and in forming novel hypotheses relating to clinical outcomes. EXPERIMENTAL DESIGN:  The impact of key drivers of cancer progression can be assessed by segregating a patient cohort by certain molecular features and constructing survival plots using the associated clinical data...
May 8, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29738801/-p-clphse-2-stabilizes-metabolic-function-in-a-rat-model-of-neuroendocrine-obesity-induced-by-monosodium-glutamate
#11
Caroline B Quines, Suzan G Rosa, Daniela Velasquez, Vinicius C Prado, José S S Neto, Cristina W Nogueira
Obesity is a chronic and complex medical condition characterized by excessive fat accumulation and its complications include metabolic syndrome, diabetes and chronic inflammation. The aim of this study was to expand the knowledge about p-chloro-diphenyl diselenide (p-ClPhSe)2 effects on enzymes and proteins involved in the metabolism of lipids and carbohydrates in a model of neuroendocrine obesity induced by MSG. Male Wistar rats were treated during the first ten postnatal days with MSG (4 g/kg, s.c.) and received (p-ClPhSe)2 (10 mg/kg, i...
May 5, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29733523/pattern-and-risk-factors-for-distant-metastases-in-gastrointestinal-neuroendocrine-neoplasms-a-population-based-study
#12
Wen Cai, Yinuo Tan, Weiting Ge, Kefeng Ding, Hanguang Hu
An increased incidence of gastrointestinal neuroendocrine neoplasms (GI-NENs) has been reported worldwide, and metastasis is the leading cause of GI-NEN-related death. Studies of different metastatic patterns in patients with different primary sites are limited. A population-based retrospective cohort study was conducted with the Surveillance, Epidemiology, and End Results (SEER) database. Patients with a GI-NEN diagnosis between 2010 and 2014 were included. All statistical analyses were performed using Intercooled Stata 12...
May 7, 2018: Cancer Medicine
https://www.readbyqxmd.com/read/29731245/the-prognostic-impact-of-primary-tumor-resection-in-pancreatic-neuroendocrine-tumors-with-synchronous-multifocal-liver-metastases
#13
Chen Lin, Hongmei Dai, Xiafei Hong, Haiyu Pang, Xianze Wang, Peiran Xu, Jialin Jiang, Wenming Wu, Yupei Zhao
BACKGROUND: Whether primary tumor resection benefits patients with synchronous multifocal liver metastases from pancreatic neuroendocrine tumors remains controversial. We investigated whether primary tumor resection significantly affects survival in this study. METHODS: A retrospective study of patients with synchronous multifocal liver metastases from pancreatic neuroendocrine tumors between 1998 and 2016 was performed. Patient demographics, operation details, adjuvant treatment, and pathological and survival information were collected, and relevant clinical-pathological parameters were assessed in univariate and multivariate survival analyses...
April 30, 2018: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/29724520/long-term-toxicity-after-transarterial-radioembolization-with-yttrium-90-using-resin-microspheres-for-neuroendocrine-tumor-liver-metastases
#14
Yuki Tomozawa, Younes Jahangiri, Priya Pathak, Kenneth J Kolbeck, Ryan C Schenning, John A Kaufman, Khashayar Farsad
PURPOSE: To evaluate long-term effects of yttrium-90 (90 Y) transarterial radioembolization (TARE) for unresectable hepatic metastases of neuroendocrine tumors (NETs). MATERIALS AND METHODS: Retrospective analysis of 93 patients (47 women, 46 men; mean age 59 y) who underwent resin-based 90 Y TARE was performed. Variables associated with overall survival were analyzed using univariate and multivariate models. Changes in serologic values and imaging characteristics were assessed with long-term follow-up...
April 30, 2018: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/29696624/therapeutic-targeting-of-tumor-associated-macrophages-in-pancreatic-neuroendocrine-tumors
#15
Sebastian Krug, Rami Abbassi, Heidi Griesmann, Bence Sipos, Dominik Wiese, Peter Rexin, Annika Blank, Aurel Perren, Johannes Haybaeck, Stefan Hüttelmaier, Anja Rinke, Thomas M Gress, Patrick Michl
Pancreatic neuroendocrine tumors (PNETs) represent a heterogeneous group of neuroendocrine neoplasms with varying biological behaviour and response to treatment. Although targeted therapies have been shown to improve the survival for patients at advanced stage, resistance to current therapies frequently occurs during the course of therapy. Previous reports indicate that the infiltration of tumor-associated macrophages (TAMs) in PNETs might correlate with tumor progression and metastasis formation. We aimed to evaluate the prognostic and functional impact of TAMs in human PNETs in vitro and in vivo and to investigate the effect of therapeutic targeting TAMs in a genetic PNET mouse model...
April 26, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29696066/metastatic-neuroendocrine-pancreatic-tumor-case-report
#16
E C Radu, A I Saizu, R R Grigorescu, A E Croitoru, C Gheorghe
Rationale. Pancreatic neuroendocrine tumors (NETs) are rare neoplasms that develop from the endocrine tissues of the pancreas. They have a better overall prognosis than pancreatic adenocarcinoma. However, all commonly used classification systems reflect a separation between more indolent, well-differentiated tumors and far more aggressive poorly differentiated types that behave clinically more like small-cell carcinoma of the lung. Objective. To present the case of a 62-year-old man with an aggressive pancreatic NET, with liver, splenic and bone metastases who underwent multidisciplinary treatment including several lines of chemotherapy, somatostatin analogs and radiotherapy...
January 2018: Journal of Medicine and Life
https://www.readbyqxmd.com/read/29690667/-clinicopathologic-characterisitics-of-pancreatic-acinar-cell-carcinomas
#17
X H Ding, Z B Wang, X M Qiu
Objective: To investigate clinical, pathological and immunohistochemical features of pancreatic acinar cell carcinoma. Methods: A retrospective review of surgical and pathological databases between 2011 and 2016 at PLA General Hospital was collected and 14 cases of acinar cell carcinoma (ACC) of the pancreas were identified. EnVision immunohistochemistry was used to detect the expression of Trypsin, bcl-10 and cytokeratin(CK) proteins. Results: The patients included nine cases of pure ACC, 3 cases of mixed acinar ductal carcinoma, 1 case of mixed acinar-neuroendocrine carcinoma and acinar-ductal-neuroendocrine carcinoma, respectively...
April 8, 2018: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29690638/neurotensin-is-a-lipid-induced-gastrointestinal-peptide-associated-with-visceral-adipose-tissue-inflammation-in-obesity
#18
Ilaria Barchetta, Flavia Agata Cimini, Danila Capoccia, Laura Bertoccini, Valentina Ceccarelli, Caterina Chiappetta, Frida Leonetti, Claudio Di Cristofano, Gianfranco Silecchia, Marju Orho-Melander, Olle Melander, Maria Gisella Cavallo
Neurotensin (NT) is a 13-amino acid peptide localized in the neuroendocrine cells of the small intestine, which promotes fat absorption and fatty acids translocation in response to lipid ingestion. NT-knock-out mice fed with a high-fat diet are protected from obesity, fatty liver, and the development of insulin-resistance. In humans, higher plasma levels of pro-NT, which is the stable circulating precursor of NT, predict obesity, type 2 diabetes (T2D), and cardiovascular disease. In obesity, the presence of visceral adipose tissue (VAT) inflammation leads to unfavorable metabolic outcomes and is associated with the development of T2D and non-alcoholic fatty liver disease (NAFLD)...
April 23, 2018: Nutrients
https://www.readbyqxmd.com/read/29678444/biliary-epithelium-a-neuroendocrine-compartment-in-cholestatic-liver-disease
#19
REVIEW
Laurent Ehrlich, Marinda Scrushy, Fanyin Meng, Terry C Lairmore, Gianfranco Alpini, Shannon Glaser
Hepatic fibrosis is characterized by abnormal accumulation of extracellular matrix (ECM) that can lead to ductopenia, cirrhosis, and even malignant transformation. In this review, we examine cholestatic liver diseases characterized by extensive biliary fibrosis such as primary sclerosing cholangitis (PSC), primary biliary cholangitis (PBC), polycystic liver disease (PLD), and MDR2-/- and BDL mouse models. Following biliary injury, cholangiocytes, the epithelial cells that line the bile ducts, become reactive and adopt a neuroendocrine phenotype in which they secrete and respond to neurohormones and neuropeptides in an autocrine and paracrine fashion...
April 17, 2018: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/29675259/successful-neoadjuvant-peptide-receptor-radionuclide-therapy-for-an-inoperable-pancreatic-neuroendocrine-tumour
#20
Tiago Nunes da Silva, M L F van Velthuysen, Casper H J van Eijck, Jaap J Teunissen, J Hofland, Wouter W de Herder
Non-functional pancreatic neuroendocrine tumours (NETs) can present with advanced local or distant (metastatic) disease limiting the possibility of surgical cure. Several treatment options have been used in experimental neoadjuvant settings to improve the outcomes in such cases. Peptide receptor radionuclide therapy (PPRT) using beta emitting radiolabelled somatostatin analogues has been used in progressive pancreatic NETs. We report a 55-year-old female patient with a 12.8 cm pancreatic NET with significant local stomach and superior mesenteric vein compression and liver metastases...
2018: Endocrinology, Diabetes & Metabolism Case Reports
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