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https://www.readbyqxmd.com/read/29792719/-sinusoidal-obstruction-syndrome-induced-by-monocrotaline-in-a-large-animal-experiment-a-pilot-study
#1
R Pálek, V Liška, V Třeška, J Rosendorf, M Emingr, V Tégl, A Králíčková, K Bajcurová, M Jiřík, Z Tonar
INTRODUCTION: Sinusoidal obstruction syndrome (SOS) is a disease which is caused by toxic injury to hepatic sinusoids. This syndrome is most frequently caused by myeloablative radiochemotherapy in patients before hematopoietic stem cells transplantation and also by oxaliplatin mainly in patients with colorectal liver metastases. The aim of this study was to establish a large animal model of SOS, which would enable further study of this disease and facilitate translation of experimental outcomes into human medicine...
2018: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
https://www.readbyqxmd.com/read/29790787/colorectal-liver-metastases-a-pathologist-s-guide-to-creating-an-informative-report-and-improving-patient-care
#2
Mariana Moreno Prats, Eizaburo Sasatomi, Heather L Stevenson
CONTEXT: - In this era of minimally invasive procedures for diagnosis, prognosis, and treatment, pathologists are at the forefront of analyzing specimens and are expected to make more specific diagnoses, providing additional information from the material they receive. OBJECTIVE: - To familiarize pathologists with the essential components of surgical pathology reports for colorectal liver metastases (CRLM) resections. DATA SOURCES: - Colorectal cancer is the third most common cancer in the world and the liver is the most frequent site of metastases...
May 23, 2018: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/29790169/met-in-gastric-cancer-with-liver-metastasis-the-relationship-between-met-amplification-and-met-overexpression-in-primary-stomach-tumors-and-liver-metastasis
#3
Han S Kim, Hong J Chon, Hyunki Kim, Su-Jin Shin, Volker Wacheck, Aaron M Gruver, Jong S Kim, Sun Y Rha, Hyun C Chung
BACKGROUND AND OBJECTIVES: Although MET amplification/overexpression was observed in a subset of gastric cancer (GC) patients, the relationship between MET amplification/overexpression in primary GC and liver metastasis was unclear. METHODS: GC samples and matched liver metastases (N = 47) were analyzed by fluorescence/silver in-situ hybridization (FISH/SISH) and by immunohistochemistry for MET amplification and MET expression, respectively. MET-copy number (CN) and Met expression data from The Cancer Genome Atlas Stomach Adenocarcinoma (TCGA-STAD, N = 356) were also analyzed...
May 22, 2018: Journal of Surgical Oncology
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
#4
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/29786487/diffusion-weighted-mri-is-superior-to-pet-ct-in-predicting-survival-of-patients-undergoing-90-y-radioembolization-of-hepatic-metastases
#5
Alexandra Barabasch, Alexander Heinzel, Philipp Bruners, Nils A Kraemer, Christiane K Kuhl
Purpose To determine the relationship between diffusion-weighted (DW) liver MR images obtained 4-6 weeks after lobar yttrium 90 (90 Y) treatment and overall survival in comparison with PET/CT or established oncologic factors known to affect survival. Materials and Methods The institutional review board approved this prospective intraindividual comparative study in 36 consecutive patients (25 women) with liver-dominant metastases (20 colorectal, 14 breast, two other) (mean age, 60 years ± 10 [standard deviation]) who underwent fluorine 18 (18 F) fluorodeoxyglucose (FDG) PET/CT and DW MRI before and 4-6 weeks after 90 Y radioembolization...
May 21, 2018: Radiology
https://www.readbyqxmd.com/read/29786130/ras-mutation-is-associated-with-unsalvageable-recurrence-following-hepatectomy-for-colorectal-cancer-liver-metastases
#6
Masayuki Okuno, Claire Goumard, Scott Kopetz, Eduardo A Vega, Katharina Joechle, Takashi Mizuno, Kiyohiko Omichi, Ching-Wei D Tzeng, Yun Shin Chun, Jean-Nicolas Vauthey, Claudius Conrad
BACKGROUND: RAS mutation status predicts survival after hepatectomy for colorectal liver metastases (CRLM) and survival after repeat hepatectomy for intrahepatic recurrence. This study was aimed at determining the impact of RAS mutation on amenability of recurrence to local therapy and on post-recurrence survival following hepatectomy. METHODS: CRLM patients with recurrence at any location after curative intent hepatectomy during the period 2006-2015 were retrospectively analyzed...
May 21, 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29783886/the-impact-of-surgical-resection-of-the-primary-tumor-on-the-development-of-synchronous-colorectal-liver-metastasis-a-systematic-review
#7
H Pinson, S Cosyns, Wim P Ceelen
BACKGROUND: In recent years different therapeutic strategies for synchronously liver metastasized colorectal cancer were described. Apart from the classical staged surgical approach, simultaneous and liver-first strategies are now commonly used. One theoretical drawback of the classical approach is, however, the stimulatory effect on liver metastases growth that may result from resection of the primary tumour. This systematic review, therefore, aims to investigate the current insights on the stimulatory effects of colorectal surgery on the growth of synchronous colorectal liver metastases in humans...
May 22, 2018: Acta Chirurgica Belgica
https://www.readbyqxmd.com/read/29782351/role-of-lkb1-in-migration-and-invasion-of-cr-vi-transformed-human-bronchial-epithelial-beas-2b-cells
#8
Jian Lu, Zhongping Zhou, Miaomiao Tang, Haijun Shen, Yi Liu, Jin Wang, Yewen Jiang, Yifan Chen, Zhanao Wu
Hexavalent chromium [Cr(VI)] is a common human carcinogen associated with lung cancer and other pulmonary diseases as exposure to excessive Cr(VI) induces malignant transformation in human lung epithelial cells. The mechanism underlying its carcinogenicity is unclear in terms of how it facilitates metastases. Cr(VI) compounds are reported to briefly promote cell migration in a concentration-dependent manner and oncogene liver kinase B1 (LKB1) was reduced in Cr(VI)-transformed cells. Overexpression of LKB1 in Beas-2B-Cr [Cr(VI) malignantly transformed Beas-2B cells] suppressed cell migration and invasion and inactivated FAK, Src, MMP-2, GSK3β, β-catenin, and HEF1, which contribute to cell migration and invasion...
May 18, 2018: Anti-cancer Drugs
https://www.readbyqxmd.com/read/29781871/early-onset-of-diffuse-melanosis-cutis-under-pembrolizumab-therapy-illustrates-the-limitations-of-anti-pd-1-checkpoint-inhibitors
#9
Alexander Thiem, Patrick Schummer, Simon Ueberschaar, Andreas Kerstan, Hermann Kneitz, David Schrama, Silke Appenzeller, Svenja Meierjohann, Bastian Schilling, Matthias Goebeler, Anja Gesierich
Anti-PD-1 targeted immunotherapies have revolutionized the treatment of advanced melanoma and other tumor entities, and long disease-free intervals have been reported in responding patients. However, a considerable number of patients still progress rapidly after the start of anti-PD-1 antibodies. Here, we document two patients, 78 and 85-year old, who suffered from advanced BRAF-V600 wild-type melanoma and received pembrolizumab 2 mg/kg every 3 weeks as the first systemic treatment. After only one, respectively, two infusions of pembrolizumab, both patients developed melanuria and diffuse melanosis cutis (DMC) on sun-exposed areas of their skin...
May 17, 2018: Melanoma Research
https://www.readbyqxmd.com/read/29780999/iphone-imaged-and-cell-powered-electrophoresis-titration-chip-for-the-alkaline-phosphatase-assay-in-serum-by-the-moving-reaction-boundary
#10
Xin-Yu Cao, Fan-Zhi Kong, Qiang Zhang, Wei-Wen Liu, Xiao-Ping Liu, Guo-Qing Li, Ran Zhong, Liu-Yin Fan, Hua Xiao, Cheng-Xi Cao
As a vital enzyme, alkaline phosphatase (ALP) has great clinical significance in diagnoses of bone or liver cancer, bone metastases, rickets, and extrahepatic biliary obstruction. However, there is still no really portable chip for the ALP assay in blood. Herein, a simple electrophoresis titration (ET) model was developed for ALP detection via a moving reaction boundary (MRB). In the model, ALP catalyzed the dephosphorylation of a 4-methylumbelliferyl phosphate disodium salt (4-MUP) substrate in the cathode well to 4-methylumbelliferone ([4-MU]-) with a negative charge and blue fluorescence under UV excitation...
May 21, 2018: Lab on a Chip
https://www.readbyqxmd.com/read/29779391/-is-preoperative-systemic-chemotherapy-recommended-for-resectable-colorectal-liver-metastases-oncosurgical-aspects
#11
Kristóf Dede, Zsuzsa Póti, Attila Bursics
Surgical resection is still the only curative treatment for colorectal liver metastases, but this is one part of a complex therapy. Nowadays a patient with colorectal liver metastasis is not treated only by a surgeon or by an oncologist or even only by an invasive radiologist. Collective decisions, complement treatments give the only chance to treat these patients for longer time. Patients with colorectal liver metastases could be regarded as patients with chronic disease. Specially interesting are the various treatment options of resectable colorectal liver metastases...
May 2018: Orvosi Hetilap
https://www.readbyqxmd.com/read/29778031/liver-resection-for-metastases-of-tracheal-adenoid-cystic-carcinoma-report-of-two-cases
#12
Shintaro Hashimoto, Yorihisa Sumida, Shuichi Tobinaga, Hideo Wada, Kouki Wakata, Takashi Nonaka, Masaki Kunizaki, Shigekazu Hidaka, Naoe Kinoshita, Terumitsu Sawai, Takeshi Nagayasu
INTRODUCTION: Tracheal adenoid cystic carcinoma (ACC) is rare and accounts for <1% of all lung cancers. Although ACC is classified as a low-grade tumor, metastases are frequently identified in the late period. Extrapulmonary metastases are rare, and their resection has rarely been reported. PRESENTATION OF CASE: Case 1: A 77-year-old man underwent tracheal resection for ACC with postoperative radiation (60 Gy) 14 years before (at the age of 63). He underwent two subsequent pulmonary resections for metastases...
May 16, 2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29777712/speckle-type-poz-protein-suppresses-hepatocellular-carcinoma-cell-migration-and-invasion-via-ubiquitin-dependent-proteolysis-of-sumo1-sentrin-specific-peptidase-7
#13
Piyou Ji, Shaohua Liang, Pengtao Li, Chengrong Xie, Jie Li, Kang Zhang, Xuqing Zheng, Min Feng, Qiu Li, Hui Jiao, Xiaoqin Chi, Wenxiu Zhao, Sheng Zhang, Xiaomin Wang
Hepatocellular carcinoma (HCC) is associated with high metastatic potential and high mortality. Accumulating evidence has demonstrated that speckle-type POZ protein (SPOP) is a key adaptor molecule of ubiquitination. However, the molecular mechanism of SPOP-mediated ubiquitination in HCC metastasis remains obscure. In the present study, our results indicated that SPOP expression was significantly downregulated in HCC and was associated with tumor size, differentiation and metastasis. Cox regression model showed that low SPOP expression was a risk factor related to the prognosis of HCC patients...
May 16, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29777523/application-of-cu-64-nodaga-psma-pet-in-prostate-cancer
#14
Sabina Sevcenco, Hans Christoph Klingler, Klaus Eredics, Alexander Friedl, Jenifer Schneeweiss, Peter Knoll, Thomas Kunit, Lukas Lusuardi, Siroos Mirzaei
INTRODUCTION: The high diagnostic potential of 64 Cu-PSMA PET-CT imaging was clinically investigated in prostate cancer patients with recurrent disease and in the primary staging of selected patients with advanced local disease. The aim of our study is to assess the uptake behavior in the clinical setting of 64Copper Prostate-Specific Membrane Antigen (64 Cu PSMA) Positron Emission Tomography/Computed Tomography (PET/CT) in prostate cancer. METHODS: A retrospective study was performed in 23 patients with intermediate, high risk and progressive disease at primary staging of prostate cancer...
May 17, 2018: Advances in Therapy
https://www.readbyqxmd.com/read/29775160/site-specific-expression-of-amine-oxidases-in-breast-cancer-metastases
#15
Yoon Jin Cha, Woo Hee Jung, Ja Seung Koo
We aimed to evaluate the expression of amine oxidase-related proteins in metastatic breast cancer tissue and determine its clinical implication. A tissue microarray was constructed from a total of 126 metastatic breast tumors (31 bone metastases (24.6%), 36 brain metastases (28.6%), 11 liver metastases (8.7%), and 48 lung metastases (38.1%)). Immunohistochemical staining for amine oxidase-related proteins (lysyl oxidase, diamine oxidase, and monoamine oxidase A and B) was performed. In metastatic breast cancer tissue, lysyl oxidase ( p = 0...
May 2018: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/29774940/-prognostic-analysis-and-clinicopathological-features-of-20-patients-with-appendiceal-neuroendocrine-neoplasms
#16
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/29774188/gadofosveset-enhanced-magnetic-resonance-imaging-as-a-problem-solving-tool-for-diagnosing-colorectal-liver-metastases-a-case-report
#17
Helen Cheung, Paul Karanicolas, Natalie Coburn, Calvin Law, Laurent Milot
Due to significant improvements in morbidity and mortality, surgery with curative intent is now the standard of care for patients with colorectal liver metastases who are surgical candidates. As a result, highly accurate preoperative per-lesion diagnosis is crucial. However, in some instances, this remains limited with standard techniques, including magnetic resonance imaging (MRI) with conventional contrast agents. Delayed retention of contrast of fibrotic liver metastases on MRI with extracellular contrast agents may mimic the late retention of contrast in hemangiomas and represent a diagnostic pitfall that limits diagnosis...
April 2018: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/29774112/rare-genetic-heterogeneity-within-single-tumor-discovered-for-the-first-time-in-colorectal-liver-metastases-after-liver-resection
#18
Mylène Sebagh, Nelly Bosselut, Alexandre Dos Santos, Marc-Antoine Allard, Aldrick Ruiz, Raphaël Saffroy, Daniel Cherqui, Eric Vibert, Denis Castaing, René Adam, Antonio Sa Cunha, Antoinette Lemoine
Effective individualized treatment of patients with colorectal liver metastases (CLM) requires tumor genotyping, usually based on the analysis of one single sample per patient. Therapy failure may partially be explained by sampling errors and/or intratumoral genetic heterogeneity. We aimed to demonstrate intratumoral genetic heterogeneity in CLM and enable pathologists to select tumor tissue for genotyping. All the tumors of 86 patients who underwent liver resection for a single CLM were reviewed. Of the 86 patients, 66 patients received chemotherapy and 20 patients did not receive chemotherapy before liver resection...
April 24, 2018: Oncotarget
https://www.readbyqxmd.com/read/29773669/unresolved-endoplasmic-reticulum-stress-engenders-immune-resistant-latent-pancreatic-cancer-metastases
#19
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/29770886/laparoscopic-extended-liver-resection-are-postoperative-outcomes-different
#20
Daniel Pietrasz, David Fuks, Daren Subar, Gianfranco Donatelli, Carlotta Ferretti, Christian Lamer, Luca Portigliotti, Marc Ward, Jane Cowan, Takeo Nomi, Marc Beaussier, Brice Gayet
BACKGROUND: Although laparoscopic major hepatectomy (LMH) is becoming increasingly common in specialized centers, data regarding laparoscopic extended major hepatectomies (LEMH) and their outcomes are limited. The aim of this study was to compare the perioperative characteristics and postoperative outcomes of LEMH to standard LMH. METHODS: All patients who underwent purely laparoscopic anatomical right or left hepatectomy and right or left trisectionectomy between February 1998 and January 2016 are enrolled...
May 16, 2018: Surgical Endoscopy
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