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https://www.readbyqxmd.com/read/29149427/the-impact-of-the-national-bowel-screening-program-in-the-netherlands-on-detection-and-treatment-of-endoscopically-unresectable-benign-polyps
#1
C C M Marres, C J Buskens, E Schriever, P C M Verbeek, M W Mundt, W A Bemelman, A W H van de Ven
BACKGROUND: In January 2014, a national bowel cancer screening program started in the Netherlands. The program is being implemented in phases until 2019. Due to this program, an increase in patients referred for a colorectal resection for benign, but endoscopically unresectable polyps, is expected. So far, most resections are performed according to oncological principles despite no pre-operative histological diagnosis of malignancy. The aim of this study was to analyze the increase in referred patients during the first year of the screening program and to compare pathological results and clinical outcome of resections of patients undergoing resection for benign polyps before and after implementation of screening...
November 17, 2017: Techniques in Coloproctology
https://www.readbyqxmd.com/read/29149105/lgr5-expression-is-regulated-by-egf-in-early-colorectal-adenomas-and-governs-egfr-inhibitor-sensitivity
#2
R G Morgan, E Mortensson, D N Legge, B Gupta, T J Collard, A Greenhough, A C Williams
BACKGROUND: LGR5 serves as a co-receptor for Wnt/β-catenin signalling and marks normal intestinal stem cells; however, its role in colorectal cancer (CRC) remains controversial. LGR5(+) cells are known to exist outside the stem cell niche during CRC progression, and the requirement for epidermal growth factor (EGF) signalling within early adenomas remains to be fully elucidated. METHODS: Epidermal growth factor and gefitinib treatments were performed in EGF-responsive LGR5(+) early adenoma RG/C2 cells...
November 16, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/29148535/the-role-of-apc-in-wnt-pathway-activation-in-serrated-neoplasia
#3
Jennifer Borowsky, Troy Dumenil, Mark Bettington, Sally-Ann Pearson, Catherine Bond, Lochlan Fennell, Cheng Liu, Diane McKeone, Christophe Rosty, Ian Brown, Neal Walker, Barbara Leggett, Vicki Whitehall
Conventional adenomas are initiated by APC gene mutation that activates the WNT signal. Serrated neoplasia is commonly initiated by BRAF or KRAS mutation. WNT pathway activation may also occur, however, to what extent this is owing to APC mutation is unknown. We examined aberrant nuclear β-catenin immunolocalization as a surrogate for WNT pathway activation and analyzed the entire APC gene coding sequence in serrated and conventional pathway polyps and cancers. WNT pathway activation was a common event in conventional pathway lesions with aberrant nuclear immunolocalization of β-catenin and truncating APC mutations in 90% and 89% of conventional adenomas and 82% and 70% of BRAF wild-type cancers, respectively...
November 17, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29146641/menopausal-hormone-therapy-and-colorectal-cancer-a-linkage-between-nationwide-registries-in-norway
#4
Edoardo Botteri, Nathalie C Støer, Solveig Sakshaug, Sidsel Graff-Iversen, Siri Vangen, Solveig Hofvind, Thomas de Lange, Vincenzo Bagnardi, Giske Ursin, Elisabete Weiderpass
OBJECTIVES: With the present study, we aimed to investigate the association between menopausal hormone therapy (HT) and risk of colorectal cancer (CRC). SETTING: Cohort study based on the linkage of Norwegian population-based registries. PARTICIPANTS: We selected 466822 Norwegian women, aged 55-79, alive and residing in Norway as of 1 January 2004, and we followed them from 2004 to 2008. Each woman contributed person-years at risk as non-user, current user and/or past HT user...
November 15, 2017: BMJ Open
https://www.readbyqxmd.com/read/29145893/normalization-of-the-microbiota-in-patients-after-treatment-for-colonic-lesions
#5
Marc A Sze, Nielson T Baxter, Mack T Ruffin, Mary A M Rogers, Patrick D Schloss
BACKGROUND: Colorectal cancer is a worldwide health problem. Despite growing evidence that members of the gut microbiota can drive tumorigenesis, little is known about what happens to it after treatment for an adenoma or carcinoma. This study tested the hypothesis that treatment for adenoma or carcinoma alters the abundance of bacterial populations associated with disease to those associated with a normal colon. We tested this hypothesis by sequencing the 16S rRNA genes in the feces of 67 individuals before and after treatment for adenoma (N = 22), advanced adenoma (N = 19), and carcinoma (N = 26)...
November 16, 2017: Microbiome
https://www.readbyqxmd.com/read/29145602/genotype-based-selection-of-treatment-for-patients-with-advanced-colorectal-cancer-seticc-a-pharmacogenetic-based-randomized-phase-ii-trial
#6
A Abad, E Martínez-Balibrea, J M Viéitez, V A Orduña, P García Alfonso, J L Manzano, B Massutí, M Benavides, A Carrato, M Zanui, J Gallego, C Grávalos, V Conde, M Provencio, M Valladares, R Salazar, J Sastre, C Montagut, F Rivera, E Aranda
Background: There has been little progress toward personalized therapy for patients with metastatic colorectal cancer (mCRC). TYMS-3' untranslated region (UTR) 6 bp ins/del and ERCC1-118C/T polymorphisms were previously reported to facilitate selecting patients for fluoropyrimidine-based treatment in combination with oxaliplatin as first-line therapy. We assessed the utility of these markers in selecting therapy for patients with mCRC. Patients and methods: This randomized, open-label phase II trial compared bevacizumab plus XELOX (control) versus treatment tailored according to TYMS-3'UTR 6 bp ins/del and ERCC1-118C/T polymorphisms...
November 14, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29145239/two-case-reports-colorectal-adenocarcinoma-in-children
#7
Chang Hoon Ahn, Soon Chul Kim
RATIONALE: Colorectal cancer in children is rare, with delayed diagnosis and advanced stage at presentation in high mortality. Early detection of colorectal cancer is, therefore, important for better prognosis. PATIENT CONCERNS: Thirteen-year-old boy presented with symptoms of melena, vomiting, and abdominal pain for 6 months. 18-year-old girl was hospitalized due to the symptoms of hematochezia, and persistent abdominal pain for 6 months. They have no chronic disease or familial history of malignancy...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29142517/is-methylation-analysis-of-sfrp2-tfpi2-ndrg4-and-bmp3-promoters-suitable-for-colorectal-cancer-screening-in-the-korean-population
#8
Soo-Kyung Park, Hae Lim Baek, Junghee Yu, Ji Yeon Kim, Hyo-Joon Yang, Yoon Suk Jung, Kyu Yong Choi, Hungdai Kim, Hyung Ook Kim, Kyung Uk Jeong, Ho-Kyung Chun, Kyungeun Kim, Dong Il Park
Background/Aims: Colorectal cancer (CRC) screening using stool DNA was recently found to yield good detection rates. A multi-target stool DNA test (Cologuard®, Exact Sciences), including methylated genes has been recently approved by the U.S. Food and Drug Administration. The aim of this study was to validate these aberrantly methylated genes as stool-based DNA markers for detecting CRC and colorectal advanced adenoma (AA) in the Korean population. Methods: A single-center study was conducted in 36 patients with AA; 35 patients with CRC; and 40 endoscopically diagnosed healthy controls using CRC screening colonoscopy...
October 2017: Intestinal Research
https://www.readbyqxmd.com/read/29139055/downstream-breast-imaging-following-screening-mammography-in-medicare-patients-with-advanced-cancer-a-population-based-study
#9
Gelareh Sadigh, Richard Duszak, Kevin C Ward, Renjian Jiang, Jeffrey M Switchenko, Kimberly E Applegate, Ruth C Carlos
BACKGROUND: Screening tests are generally not recommended in patients with advanced cancer and limited life expectancy. Nonetheless, screening mammography still occurs and may lead to follow-up testing. OBJECTIVE: We assessed the frequency of downstream breast imaging following screening mammography in patients with advanced colorectal or lung cancer. DESIGN: Population-based study. PARTICIPANTS: The study included continuously enrolled female fee-for-service Medicare beneficiaries ≥65 years of age with advanced colorectal (stage IV) or lung (stage IIIB-IV) cancer reported to a Surveillance, Epidemiology, and End Results (SEER) registry between 2000 and 2011...
November 14, 2017: Journal of General Internal Medicine
https://www.readbyqxmd.com/read/29138955/the-impact-of-palliative-care-training-for-oncologists-and-integrative-palliative-service-in-a-public-funded-hospital-cluster-a-retrospective-cohort-study
#10
Pak-Lun Lam, Tai-Chung Lam, Cheuk-Wai Choi, Anne Wing-Mui Lee, Kwok-Keung Yuen, To-Wai Leung
PURPOSE: Oncological care of advanced cancer patients was provided by multiple departments in Hong Kong. One of these departments, the clinical oncology department (COD), introduced systematic palliative care training for its oncologists since 2002. The COD was recognized as a European Society for Medical Oncology (ESMO) Designated Centre of Integrated Oncology and Palliative Care since 2009. This retrospective cohort study aims to review the impact of integrative training and service on palliative care coverage and outcome...
November 14, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29138933/population-based-screening-improves-histopathological-prognostic-factors-in-colorectal-cancer
#11
Mónica Mengual-Ballester, Enrique Pellicer-Franco, Graciela Valero-Navarro, Victoriano Soria-Aledo, José Andrés García-Marín, José Luis Aguayo-Albasini
INTRODUCTION: Diagnosis of colorectal cancer (CRC) based on clinical symptoms is usually established in its advanced stages. One strategy for reducing mortality is the early detection and removal of preneoplastic and initial neoplastic lesions, even before the first symptoms appear, by means of population-based screening campaigns. The aim of the present study is to determine whether CRC diagnosed via a screening campaign has more favourable histopathological prognostic factors than when diagnosed in the symptomatic phase...
November 14, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/29138842/placenta-specific-protein-1-promotes-cell-proliferation-and-invasion-in-non-small-cell-lung-cancer
#12
Li Yang, Tian-Qi Zha, Xiang He, Liang Chen, Quan Zhu, Wei-Bing Wu, Feng-Qi Nie, Qian Wang, Chong-Shuang Zang, Mei-Ling Zhang, Jing He, Wei Li, Wen Jiang, Kai-Hua Lu
Pulmonary carcinoma-associated proteins have emerged as crucial players in governing fundamental biological processes such as cell proliferation, apoptosis and metastasis in human cancers. Placenta-specific protein 1 (PLAC1) is a cancer-related protein, which is activated and upregulated in a variety of malignant tissues, including prostate cancer, gastric adenocarcinoma, colorectal, epithelial ovarian and breast cancer. However, its biological role and clinical significance in non-small cell lung cancer (NSCLC) development and progression are still unknown...
November 9, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29137605/effects-of-aspirin-and-non-aspirin-nonsteroidal-anti-inflammatory-drugs-on-the-incidence-of-recurrent-colorectal-adenomas-a-systematic-review-with-meta-analysis-and-trial-sequential-analysis-of-randomized-clinical-trials
#13
Sajesh K Veettil, Kean Ghee Lim, Siew Mooi Ching, Surasak Saokaew, Pochamana Phisalprapa, Nathorn Chaiyakunapruk
BACKGROUND: Beneficial effects of aspirin and non-aspirin nonsteroidal anti-inflammatory drugs (NSAIDs) against recurrent colorectal adenomas have been documented in systematic reviews; however, the results have not been conclusive. Uncertainty remains about the appropriate dose of aspirin for adenoma prevention. The persistence of the protective effect of NSAIDs against recurrent adenomas after treatment cessation is yet to be established. METHODS: Our objective was to update and systematically evaluate the evidence for aspirin and other NSAIDs on the incidence of recurrent colorectal adenomas taking into consideration the risks of random error and to appraise the quality of evidence using GRADE (The Grading of Recommendations, Assessment, Development and Evaluation) approach...
November 14, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29137387/infrequently-expressed-mirnas-influence-survival-after-diagnosis-with-colorectal-cancer
#14
Martha L Slattery, Andrew J Pellatt, Frances Y Lee, Jennifer S Herrick, Wade S Samowitz, John R Stevens, Roger K Wolff, Lila E Mullany
Half of miRNAs expressed in colorectal tissue are expressed < 50% of the population. Many infrequently expressed miRNAs have low levels of expression. We hypothesize that less frequently expressed miRNAs, when expressed at higher levels, influence both disease stage and survival after diagnosis with colorectal cancer (CRC); low levels of expression may be background noise. We examine 304 infrequently expressed miRNAs in 1893 population-based cases of CRC with paired carcinoma and normal mucosa miRNA profiles...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29137332/long-noncoding-rna-xist-is-a-prognostic-factor-in-colorectal-cancer-and-inhibits-5-fluorouracil-induced-cell-cytotoxicity-through-promoting-thymidylate-synthase-expression
#15
Yang Xiao, Usenko Alexander Yurievich, Smorzhevskyi Valentyn Yosypovych
A major reason for the failure of advanced colorectal cancer (CRC) treatment is the occurrence of chemoresistance to 5-fluorouracil (5FU)-based treatment. Recent studies have shown that long non-coding RNAs (lncRNAs) are critical regulators in chemoresistance. By using the next generation HiSeq sequencing assay, we identified lncRNAs showing differential expression levels in 5FU resistant and non-resistant CRC patients. RT-qPCR was then performed for validation in tissues and serum samples, and lncRNA XIST was verified to be up-regulated in non-responding patients and have considerable diagnostic potential to identify responding patients from non-responding patients...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29136407/phospholipase-d-inhibitors-reduce-human-prostate-cancer-cell-proliferation-and-colony-formation
#16
Amanda R Noble, Norman J Maitland, Daniel M Berney, Martin G Rumsby
BACKGROUND: Phospholipases D1 and D2 (PLD1/2) hydrolyse cell membrane glycerophospholipids to generate phosphatidic acid, a signalling lipid, which regulates cell growth and cancer progression through effects on mTOR and PKB/Akt. PLD expression and/or activity is raised in breast, colorectal, gastric, kidney and thyroid carcinomas but its role in prostate cancer (PCa), the major cancer of men in the western world, is unclear. METHODS: PLD1 protein expression in cultured PNT2C2, PNT1A, P4E6, LNCaP, PC3, PC3M, VCaP, 22RV1 cell lines and patient-derived PCa cells was analysed by western blotting...
November 14, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/29135092/the-prognostic-role-of-skp2-and-the-tumor-suppressor-protein-p27-in-colorectal-cancer
#17
Ovidiu Vasile Bochis, Patriciu Achimas-Cadariu, Catalin Vlad, Bogdan Fetica, Daniel Corneliu Leucuta, Constantin Ioan Busuioc, Alexandru Irimie
PURPOSE: This study aimed at exploring the role of Skp2, p27 and Cks1 expression as prognostic factors for colorectal cancer (CRC) patients, and to identify a correlation between their expression and the cell proliferation marker Ki67. METHODS: We conducted a retrospective study on 130 patients with CRC treated with surgery and adjuvant treatment at the Oncology Institute Cluj-Napoca between 2006- 2010. The Skp2, p27, Cks1 and Ki67 immunoexpression was grouped from 1 to 4, according to percents of tumor cells with nuclear reactivity...
September 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29134372/systematic-review-of-cytoreductive-surgery-and-bevacizumab-containing-chemotherapy-in-advanced-ovarian-cancer-focus-on-safety
#18
REVIEW
Marco Petrillo, Camilla Nero, Vittoria Carbone, Matteo Bruno, Giovanni Scambia, Anna Fagotti
BACKGROUND: Initial experiences reported increased surgical morbidities in patients receiving cytoreductive surgery for colorectal cancer after bevacizumab-containing chemotherapy; however, more recent literature suggests a favorable toxicity profile in patients with advanced ovarian cancer (AOC). With the aim of providing a more objective point of view on this controversial issue, we present here a systematic literature review. METHODS: Systematic revision of the available literature was conducted using the PubMed, MEDLINE, and EMBASE electronic databases...
November 13, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29133621/the-mutational-landscape-of-gastrointestinal-malignancies-as-reflected-by-circulating-tumor-dna
#19
Paul Riviere, Paul T Fanta, Sadakatsu Ikeda, Joel Baumgartner, Gregory M Heestand, Razelle Kurzrock
We aimed to assess the utility of a novel, non-invasive method of detecting genomic alterations in patients with gastrointestinal malignancies i.e., the use of liquid biopsies to obtain blood-derived circulating tumor DNA (ctDNA) through an analysis of the genomic landscape of ctDNA (68 genes) from 213 patients with advanced gastrointestinal cancers. The most common cancer types were colorectal adenocarcinoma (N=55 (26%)), appendiceal adenocarcinoma (N=46 (22%)), hepatocellular carcinoma (N=31 (15%)), and pancreatic ductal adenocarcinoma (N=25 (12%))...
November 13, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/29132174/feasibility-safety-and-diagnostic-yield-of-the-extra-wide-angle-view-ewave-colonoscope-for-the-detection-of-colorectal-lesions
#20
Maxime E S Bronzwaer, Evelien Dekker, Vincens Weingart, Stefan Groth, Mathieu Pioche, Jérôme Rivory, Torsten Beyna, Horst Neuhaus, Thierry Ponchon, Hans Allescher, Paul Fockens, Thomas Rösch
Background and study aims The adenoma detection rate (ADR) of conventional colonoscopy can still be improved. We conducted a prospective multicenter cohort study to assess the feasibility, safety, and diagnostic yield of the Extra Wide Angle View (EWAVE) colonoscope, which offers a 235° view obtained from a forward-viewing and two lateral backward-viewing lenses incorporated into one image. Patients and methods The study was performed between November 2015 and June 2016. EWAVE colonoscopy was performed in patients with an increased risk of colorectal cancer by experienced and EWAVE-trained endoscopists (≥ 500 colonoscopies, ≥ 10 with the EWAVE system)...
November 13, 2017: Endoscopy
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