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https://www.readbyqxmd.com/read/28319096/hyperglycemia-exacerbates-colon-cancer-malignancy-through-hexosamine-biosynthetic-pathway
#1
A Vasconcelos-Dos-Santos, H F B R Loponte, N R Mantuano, I A Oliveira, I F de Paula, L K Teixeira, J C M de-Freitas-Junior, K C Gondim, N Heise, R Mohana-Borges, J A Morgado-Díaz, W B Dias, A R Todeschini
Hyperglycemia is a common feature of diabetes mellitus, considered as a risk factor for cancer. However, its direct effects in cancer cell behavior are relatively unexplored. Herein we show that high glucose concentration induces aberrant glycosylation, increased cell proliferation, invasion and tumor progression of colon cancer. By modulating the activity of the rate-limiting enzyme, glutamine-fructose-6-phosphate amidotransferase (GFAT), we demonstrate that hexosamine biosynthetic pathway (HBP) is involved in those processes...
March 20, 2017: Oncogenesis
https://www.readbyqxmd.com/read/28315907/can-preoperative-cea-and-ca19-9-serum-concentrations-suggest-metastatic-disease-in-colorectal-cancer-patients
#2
Milica Stojkovic Lalosevic, Sanja Stankovic, Mirjana Stojkovic, Velimir Markovic, Ivan Dimitrijevic, Jovan Lalosevic, Jelena Petrovic, Marija Brankovic, Aleksandra Pavlovic Markovic, Zoran Krivokapic
OBJECTIVE: This study was designed to investigate the efficiency of preoperative serum carcinoembryonic antigen (CEA) and carbohydrate cancer antigen (CA19-9) levels for diagnosing synchronous liver metastases and lymph node in colorectal carcinoma (CRC) patients. SUBJECTS AND METHODS: A total of 300 patients with histologically diagnosed CRC were included in this study between May 2014 and March 2015. The data were obtained prospectively from patient's medical records: medical history, demographics, tumor location, differentiation (grade), depth of the tumor (T), lymph node metastases (N), distant metastases (M), lymphatics, venous and perineural invasion, and disease stage...
March 20, 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28315775/assessment-of-histone-tail-modifications-and-transcriptional-profiling-during-colon-cancer-progression-reveals-a-global-decrease-in-h3k4me3-activity
#3
Karen Triff, Mathew W McLean, Kranti Konganti, Jiahui Pang, Evelyn Callaway, Beiyan Zhou, Ivan Ivanov, Robert S Chapkin
During colon cancer, epigenetic alterations contribute to the dysregulation of major cellular functions and signaling pathways. Modifications in chromatin signatures such as H3K4me3 and H3K9ac, which are associated with transcriptionally active genes, can lead to genomic instability and perturb the expression of gene sets associated with oncogenic processes. In order to further elucidate early pre-tumorigenic epigenetic molecular events driving CRC, we integrated diverse, genome-wide, epigenetic inputs (by high throughput sequencing of RNA, H3K4me3, and H3K9ac) and compared differentially expressed transcripts (DE) and enriched regions (DER) in an in-vivo rat colon cancer progression model...
March 15, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28314990/an-apparent-clinical-pharmacokinetic-drug-drug-interaction-between-bevacizumab-and-the-anti-placental-growth-factor-monoclonal-antibody-ro5323441-via-a-target-trapping-mechanism
#4
Ka Wang, Franziska Schaedeli Stark, Tilman Schlothauer, Angelika Lahr, Valerie Cosson, Jianguo Zhi, Kai Habben, Jean Tessier, Eginhard Schick, Roland F Staack, Oliver Krieter
PURPOSE: RO5323441 is a humanized anti-placental growth factor (PlGF) monoclonal antibody that has shown preclinical activity in several cancer models. The objective of this analysis is to examine the pharmacokinetic (PK) results from four Phase I studies that have been conducted with RO5323441 (n = 61) and to report an apparent drug-drug interaction observed when RO5323441 was administered in combination with bevacizumab. METHODS: The four Phase I studies were a multiple-ascending dose study in 23 patients with solid tumors (Study 1), an open-label study in seven patients with colorectal/ovarian cancer (Study 2), a sorafenib combination study in nine patients with hepatocellular carcinoma (Study 3), and a bevacizumab combination study in 22 patients with recurrent glioblastoma (Study 4)...
March 17, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28314541/risk-of-subsequent-primary-kidney-cancer-after-another-malignancy-a-population-based-study
#5
Omar Abdel-Rahman
BACKGROUND: Population-based data on the development of kidney cancer as a second malignant neoplasm following the diagnosis of other common malignancies are rare. This clinical scenario has been evaluated within the Surveillance, Epidemiology, and End Results (SEER) database. MATERIALS AND METHODS: The SEER-9 database (1973-2013) was queried using the SEER*Stat program to determine the standardized incidence ratios (SIRs) of kidney cancer development following each one of 10 common invasive malignancies (colorectal, breast, prostate, lung, thyroid, corpus uteri, urinary bladder, kidney/renal pelvis, cutaneous melanoma, and non-Hodgkin lymphoma)...
February 27, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28314293/assessment-of-nutritional-and-inflammatory-status-to-determine-the-prevalence-of-malnutrition-in-patients-undergoing-surgery-for-colorectal-carcinoma
#6
Antonella Daniele, Rosa Divella, Ines Abbate, Addolorata Casamassima, Vito Michele Garrisi, Eufemia Savino, Porzia Casamassima, Eustachio Ruggieri, Raffaele DE Luca
BACKGROUND/AIM: Colorectal Cancer is the fourth most frequent cause of cancer death worldwide and its incidence increases from 50 years of age. It is often associated with protein-caloric malnutrition and 20% of cancer deaths occur due to this event. The aim of this study was to assess the prevalence of malnutrition and inflammatory status in 78 patients undergoing surgery for colorectal carcinoma. PATIENTS AND METHODS: Nutritional Status was assessed by Mini Nutritional Assessment (MNA)...
March 2017: Anticancer Research
https://www.readbyqxmd.com/read/28303484/alterations-in-microrna-expression-associated-with-alcohol-consumption-in-rectal-cancer-subjects
#7
Lila E Mullany, Jennifer S Herrick, Roger K Wolff, John R Stevens, Martha L Slattery
PURPOSE: Alcohol consumption has been purported to influence many diseases. MicroRNAs (miRNAs) may be influenced by compounds found in alcohol. In this investigation, we test the hypothesis that total alcohol, beer, wine, and hard liquor influence miRNA expression. METHODS: We studied 1447 colorectal (CR) cancer cases with normal CR mucosa and carcinoma miRNA expression data along with alcohol consumption data. We analyzed long-term and long-term and current (LTC) alcohol use for beer, liquor, and wine with miRNA expression between paired carcinoma and normal colon and rectal tissues, adjusting for multiple comparisons using the positive false discovery rate q-value...
March 16, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28302003/liver-transplant-for-nonhepatocellular-carcinoma-malignancy
#8
Nihan Haberal Reyhan
Liver transplant is now an acceptable and effective treatment for specific nonhepatocellular malignancies. Worldwide, hilar cholangiocarcinoma accounts for 3% of all primary gastrointestinal malignancies and for 10% of primary hepatobiliary malignancies. For patients who have early-stage, unresectable cholangiocarcinoma, liver transplant preceded by neoadjuvant radiotherapy can result in tumor-free margins, accomplish a radical resection, and treat the underlying primary sclerosing cholangitis when present...
March 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28301579/a-novel-model-of-colitis-associated-cancer-in-samp1-yitfc-mice-with-crohn-s-disease-like-ileitis
#9
Paola Menghini, Luca Di Martino, Loris R Lopetuso, Daniele Corridoni, Joshua C Webster, Wei Xin, Kristen O Arseneau, Minh Lam, Theresa T Pizarro, Fabio Cominelli
Patients with inflammatory bowel disease (IBD) are at increased risk for developing colorectal cancer. Evidence suggests that colonic dysplasia and colitis-associated cancer (CAC) are often linked to repeated cycles of epithelial cell injury and repair in the context of chronic production of inflammatory cytokines. Several mouse models of CAC have been proposed, including chemical induction through exposure to dextran sulfate sodium (DSS) with the genotoxic agents azoxymethane (AOM), 1,2-dymethylhydrazine (DHM) or targeted genetic mutations...
2017: PloS One
https://www.readbyqxmd.com/read/28296190/microrna-1254-inhibits-the-migration-of-colon-adenocarcinoma-cells-by-targeting-psmd10
#10
Yi-Min Chu, Hai-Xia Peng, Ying Xu, Da-Ming Yang, Feng-Li Zhou, Rong Kuai Ji Li, Yong Lin
BACKGROUND AND AIMS: MicroRNA-1254 (miR-1254) has not been studied in colorectal cancer (CRC) to date. In the current study, we investigate the inhibitory mechanism of miR-1254 in CRC tumorigenesis. METHODS: Differential miR-1254 expression was examined using real-time-PCR in CRC and control tissues. Whether miR-1254 levels correlated with colon adenocarcinoma cell proliferation and migration was determined using the CCK-8 and transwell assays. RNA sequencing was used to identify differentially expressed genes downstream of miR-1254...
March 10, 2017: Journal of Digestive Diseases
https://www.readbyqxmd.com/read/28293308/mismatch-repair-proteins-and-microsatellite-instability-in-colorectal-carcinoma-mlh1-msh2-msh6-and-pms2-histopathological-and-immunohistochemical-study
#11
Nour El Hoda S Ismael, Samar A El Sheikh, Suzan M Talaat, Eman M Salem
BACKGROUND: Colorectal cancer (CRC) is one of the most common cancers worldwide. Microsatellite instability (MSI) is detected in about 15% of all colorectal cancers. CRC with MSI has particular characteristics such as improved survival rates and better prognosis. They also have a distinct sensitivity to the action of chemotherapy. AIM: The aim of the study was to detect microsatellite instability in a cohort of colorectal cancer Egyptian patients using the immunohistochemical expression of mismatch repair proteins (MLH1, MSH2, MSH6 and PMS2)...
March 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28292978/validating-a-fully-automated-real-time-pcr-based-system-for-use-in-the-molecular-diagnostic-analysis-of-colorectal-carcinoma-a-comparison-with-ngs-and-ihc
#12
Richard Colling, Lai Mun Wang, Elizabeth Soilleux
BACKGROUND: Molecular testing is increasingly needed in colorectal carcinoma (CRC) and the current clinically relevant mutations are in BRAF, KRAS and NRAS. This study aimed to further validate a new alternative polymerase chain reaction (PCR) platform (Idylla, Biocartis) against existing next-generation sequencing (NGS) and immunohistochemistry (IHC) assays. METHODS: 56 Idylla tests were performed on 43 CRC cases, in a total of 74 comparisons against an NGS panel (Ion Torrent) and the VE1 (anti-BRAF) antibody IHC...
March 14, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28291253/mecp2-mediated-epigenetic-silencing-of-mir-137-contributes-to-colorectal-adenoma-carcinoma-sequence-and-tumor-progression-via-relieving-the-suppression-of-c-met
#13
Tao Chen, Shi-Lun Cai, Jian Li, Zhi-Peng Qi, Xu-Quan Li, Le-Chi Ye, Xiao-Feng Xie, Ying-Yong Hou, Li-Qing Yao, Mei-Dong Xu, Ping-Hong Zhou, Jian-Min Xu, Yun-Shi Zhong
The molecular mechanisms underlying colorectal cancer (CRC) development remain elusive. In this study, we examined the miRNA and mRNA expressions in the adenoma-carcinoma sequence (ACS), a critical neoplastic progression in CRC development. We found that miR-137 was down-regulated in all adenoma and carcinoma tissues. Low miR-137 levels were correlated negatively with tumor progression and metastasis. Then we identified the inhibition effect of the miR-137 in CRC development, both in CRC cell lines and mouse models...
March 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28289479/colorectal-adenoma-and-carcinoma-specific-mirna-profiles-in-biopsy-and-their-expression-in-plasma-specimens
#14
Zsófia Brigitta Nagy, Barnabás Wichmann, Alexandra Kalmár, Orsolya Galamb, Barbara Kinga Barták, Sándor Spisák, Zsolt Tulassay, Béla Molnár
BACKGROUND: MiRNA expression markers are well characterized in colorectal cancer (CRC), but less is known about miRNA expression profiles in colorectal adenomas. Genome-wide miRNA and mRNA expression analyses were conducted through the colorectal adenoma dysplasia sequence. Furthermore, analysis of the expression levels of miRNAs in matched plasma samples was performed, focusing on biomarker candidates; miRNA and mRNA expression analyses were performed on colorectal biopsies and plasma samples (20 normals; 11 tubular and 9 tubulovillous adenomas; 20 colorectal carcinomas) by miRNA 3...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/28289273/metastatic-colonic-adenocarcinoma-to-the-extrahepatic-common-bile-duct-the-critical-role-of-the-pathologist-and-immunohistochemistry-in-guiding-patient-care-decisions
#15
Kurt J Knowles, Shoujun Chen, Gillermo A Herrera
BACKGROUND Adenocarcinoma of the colon frequently invades adjacent organs, spreads intraperitoneal, and metastasizes to intestinal lymph nodes, lungs, and the liver. Metastasis solely to the extrahepatic bile duct is extremely rare and has only been previously reported on 15 occasions. The accurate determination that an extrahepatic common bile duct lesion is of colonic origin has critical therapeutic implications. CASE REPORT The patient was a 50-year-old male with a history of colon cancer S/P surgical resection in September 2014...
March 14, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28288461/clinical-pattern-of-recurrent-disease-during-the-follow-up-of-rectal-carcinoma
#16
Thijs Wieldraaijer, Pascal Bruin, Laura A M Duineveld, Pieter J Tanis, Anke B Smits, Henk C P M van Weert, Jan Wind
BACKGROUND/AIMS: Several initiatives have started to transfer colorectal cancer follow-up (FU) from secondary to primary care. For this purpose, it is important to assess when and how recurrences of rectal carcinoma are detected after treatment with curative intent. METHODS: Retrospective multicentre cohort study. Patients participating in an FU programme after curative intended treatment for rectal cancer stages I-III between 2007 and 2014. RESULTS: Of the 378 patients, 64 (17%) developed recurrent disease (RD)...
March 14, 2017: Digestive Surgery
https://www.readbyqxmd.com/read/28288065/how-has-virtual-hepatectomy-changed-the-practice-of-liver-surgery-experience-of-1194-virtual-hepatectomy-before-liver-resection-and-living-donor-liver-transplantation
#17
Yoshihiro Mise, Kiyoshi Hasegawa, Shouichi Satou, Junichi Shindoh, Kenji Miki, Nobuhisa Akamatsu, Junichi Arita, Junichi Kaneko, Yoshihiro Sakamoto, Norihiro Kokudo
OBJECTIVE: To assess how virtual hepatectomy (VH), conducted using surgical planning software, influences the outcomes of liver surgery. BACKGROUND: Imaging technology visualizes the territories of the liver vessels, which were previously impossible. However, the clinical impact of VH has not been evaluated. METHODS: From 2004 to 2013, we performed 1194 VHs preoperatively. Outcomes of living donor liver transplantation (LDLT) and hepatectomy for hepatocellular carcinoma (HCC)/colorectal liver metastases (CRLM) were compared between patients in whom VH was performed (VH) and those without VH evaluation (non-VH)...
March 10, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28285963/clear-cell-colorectal-carcinoma-time-to-clarify-diagnosis
#18
Andrea Remo, Federica Grillo, Luca Mastracci, Matteo Fassan, Sokol Sina, Caterina Zanella, Pietro Parcesepe, Emanuele Damiano Urso, Massimo Pancione, Germana Bortuzzo, Aldo Scarpa, Erminia Manfrin
Primary clear cell colorectal carcinoma (CCC) is a very rare entity accounting for only 35 cases reported in the Literature. CCC is neither classified as a distinct entity nor is it defined as a CRC variant because its ontogeny remains unclear. Most of the reported CCC were found in the distal colon in patients with a mean age of 56 years. Histologically, clear cell change is the main morphologic feature and may present in a "pure" form, composed exclusively of clear cells, or in a "composite" form, admixed with other morphologically different components...
February 24, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28284575/mfolfox6-plus-panitumumab-versus-5-fu-lv-plus-panitumumab-after-six-cycles-of-frontline-mfolfox6-plus-panitumumab-a-randomized-phase-ii-study-of-patients-with-unresectable-or-advanced-recurrent-ras-wild-type-colorectal-carcinoma-sapphire-study-design-and%C3%A2-rationale
#19
Naoki Nagata, Hideyuki Mishima, Shuichi Kurosawa, Koji Oba, Junichi Sakamoto
BACKGROUND: In Japan, oxaliplatin (OXA)/5-fluorouracil (5-FU)/leucovorin (LV)-the mFOLFOX6 regimen-is the most frequently used first-line chemotherapy backbone for metastatic colorectal cancer. However, peripheral nerve disorders caused by OXA during mFOLFOX6 therapy can decrease patients' quality of life. OXA can be safely discontinued from a FOLFOX regimen after 6 cycles during first-line therapy. Also, for patients who discontinue OXA without having experienced peripheral nerve disorders, reintroducing OXA in the later stages of treatment could remain an option...
March 1, 2017: Clinical Colorectal Cancer
https://www.readbyqxmd.com/read/28284101/relationship-between-14-c-meaib-uptake-and-amino-acid-transporter-family-gene-expression-levels-or-proliferative-activity-in-a-pilot-study-in-human-carcinoma-cells-comparison-with-3-h-methionine-uptake
#20
Shinya Kagawa, Ryuichi Nishii, Tatsuya Higashi, Hiroshi Yamauchi, Emi Ogawa, Hiroyuki Okudaira, Masato Kobayashi, Mitsuyoshi Yoshimoto, Naoto Shikano, Keiichi Kawai
INTRODUCTION: To clarify the difference between system A and L amino acid transport imaging in PET clinical imaging, we focused on the use of α-[N-methyl-(11)C]-methylaminoisobutyric acid ([(11)C]MeAIB), and compared it with [S-methyl-(11)C]-L-methionine ([(11)C]MET). The aim of this study was to assess the correlation of accumulation of these two radioactive amino acid analogs with expression of amino acid transporters and cell proliferative activity in carcinoma cells. METHODS: Amino acid uptake inhibitor studies were performed in four human carcinoma cells (epidermal carcinoma A431, colorectal carcinoma LS180, and lung carcinomas PC14/GL and H441/GL) using the radioisotope analogs [(3)H]MET and [(14)C]MeAIB...
January 26, 2017: Nuclear Medicine and Biology
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