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https://www.readbyqxmd.com/read/28812255/persisting-racial-disparities-in-colonoscopy-screening-of-persons-with-a-family-history-of-colorectal-cancer
#1
Meng-Han Tsai, Sudha Xirasagar, Piet C de Groen
With 23 and 47% higher colorectal cancer (CRC) incidence and mortality, respectively, among African Americans vs. Whites, CRC screening studies are important. Screening guidelines recommend 5-yearly colonoscopy screening of persons with a family history of CRC (first-degree relatives, FDRs), beginning at 40 years of age. For this elevated-risk group, colonoscopy screening is preferred because of the risk of more aggressive cancer that may elude early detection by other methods. African Americans with a family history of CRC are at the intersection of two elevated risk demographics, race and FDR status...
August 15, 2017: Journal of Racial and Ethnic Health Disparities
https://www.readbyqxmd.com/read/28812134/elevated-tumor-to-liver-uptake-ratio-tlr-from-18-f-fdg-pet-ct-predicts-poor-prognosis-in-stage-iia-colorectal-cancer-following-curative-resection
#2
Jun Huang, Liang Huang, Jiaming Zhou, Yinghua Duan, Zhanwen Zhang, Xiaoyan Wang, Pinzhu Huang, Shuyun Tan, Ping Hu, Jianping Wang, Meijin Huang
PURPOSE: The prognostic value of the tumor-to-liver uptake ratio (TLR) from 18-fluoro-2-deoxyglucose positron emission tomography/computed tomography ((18)F-FDG-PET/CT) in the early stage of colorectal cancer (CRC) is unclear. Notably, some stage IIA CRC patients experience early recurrence even after curative resection and might benefit from neoadjuvant or adjuvant chemotherapy. This study aims to evaluate whether elevated TLR from (18)F-FDG-PET/CT can predict poor prognosis in stage IIA CRC patients undergoing curative resection...
August 15, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28811977/epigenetic-regulation-of-the-extrinsic-oncosuppressor-ptx3-gene-in-inflammation-and-cancer
#3
Marcello Rubino, Paolo Kunderfranco, Gianluca Basso, Carolina Magdalen Greco, Fabio Pasqualini, Simone Serio, Massimo Roncalli, Luigi Laghi, Alberto Mantovani, Roberto Papait, Cecilia Garlanda
PTX3 is a component of the humoral arm of innate immunity and an extrinsic oncosuppressor gene taming tumor-promoting inflammation. Here, we show that two enhancers differently regulate PTX3 expression: enhancer 1, located 230 kb upstream of PTX3 promoter, mediated the action of inflammatory transcription factors; and enhancer 2, encompassing PTX3 second exon, was implicated in pre-initiation complex assembly. Polycomb repressive complex 2 silenced these regulatory elements and the promoter in basal condition...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28811964/pd-l2-expression-in-colorectal-cancer-independent-prognostic-effect-and-targetability-by-deglycosylation
#4
Huanbin Wang, Han Yao, Chushu Li, Lunxi Liang, Yao Zhang, Hubing Shi, Chongzhi Zhou, Yingxuan Chen, Jing-Yuan Fang, Jie Xu
Colorectal cancer (CRC) is the second leading cause of cancer death worldwide, and immune checkpoint blockade therapy provides an opportunity for improving the outcome of CRC patients. Recent studies suggest that programmed death ligand-1 (PD-L1) is only expressed in 12% of CRCs. Here, we demonstrate that PD-L2 is expressed in approximately 40% CRCs, and its expression independently associates with poor survival of CRC patients. By detection of PD-L2 expression by immunofluorescence in 124 CRC cases with 10-y survival data, we found significant association between PD-L2 overexpression in cancer cells and worse overall survival (46...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28811946/are-all-mutations-the-same-a-rare-case-report-of-coexisting-mutually-exclusive-kras-and-braf-mutations-in-a-patient-with-metastatic-colon-adenocarcinoma
#5
Anusha Vittal, Akshay Middinti, Anup Kasi Loknath Kumar
29-year-old Hispanic woman presented to the clinic with complaints of abdominal pain, nausea, fatigue, and constipation. Laboratory tests indicated the presence of iron deficiency anemia and transaminitis. Imaging evaluation revealed marked hepatomegaly with multiple hepatic metastases and pelvic lymphadenopathy. Biopsy of the hepatic lesions showed adenocarcinoma positive for pan-cytokeratin, CMA5.2, villin, and CDX2. She was positive for tumor markers CA 19-9, CA-125, and CEA. Upon further evaluation, she was found to have colorectal cancer positive for KRAS and BRAF mutations...
2017: Case Reports in Oncological Medicine
https://www.readbyqxmd.com/read/28811822/overall-survival-of-elderly-patients-having-surgery-for-colorectal-cancer-is-comparable-to-younger-patients-results-from-a-south-asian-population
#6
Pramodh Chitral Chandrasinghe, Dileepa Senajith Ediriweera, Thaaqib Nazar, Sumudu Kumarage, Janaki Hewavisenthi, Kemal Ismail Deen
INTRODUCTION: There has been a continuous debate on whether elderly patients with colorectal cancer (CRC) fair worse. The aim of this study is to assess the thirty-day mortality (TDM) and overall survival (OS) of elderly patients undergoing surgery for CRC. METHOD: OS between two groups (≥70 versus <70 years) having surgery for CRC was analyzed. Demographics, tumour characteristics, and serological markers were considered as independent factors. Multivariable analysis was done using the Cox proportional hazard model...
2017: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/28811714/sex-dependent-difference-in-the-effect-of-metformin-on-colorectal-cancer-specific-mortality-of-diabetic-colorectal-cancer-patients
#7
Jung Won Park, Jin Ha Lee, Ye Hyun Park, Soo Jung Park, Jae Hee Cheon, Won Ho Kim, Tae Il Kim
AIM: To assess factors associated with the higher effect of metformin on mortality in diabetic colorectal cancer (CRC) patients, since the factors related to the effectiveness of metformin have not been identified yet. METHODS: Between January 2000 and December 2010, 413 patients diagnosed with both stage 3/4 CRC and diabetes mellitus were identified. Patients' demographics and clinical characteristics were analyzed. The effect of metformin on CRC-specific mortality and the interactions between metformin and each adjusted factor were evaluated...
July 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28811705/colorectal-cancer-screening-an-updated-review-of-the-available-options
#8
REVIEW
Iyad A Issa, Malak Noureddine
Colorectal cancer (CRC) is a significant cause of morbidity and mortality worldwide. However, colon cancer incidence and mortality is declining over the past decade owing to adoption of effective screening programs. Nevertheless, in some parts of the world, CRC incidence and mortality remain on the rise, likely due to factors including "westernized" diet, lifestyle, and lack of health-care infrastructure and resources. Participation and adherence to different national screening programs remain obstacles limiting the achievement of screening goals...
July 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28811701/colorectal-cancer-in-young-adults-a-difficult-challenge
#9
EDITORIAL
Fábio Guilherme Campos
Sporadic colorectal cancer (CRC) is traditionally diagnosed after the sixth decade of life, and current recommendations for surveillance include only patients older than 50 years of age. However, an increasing incidence of CRC in patients less than 40 years of age has been reported. This occurrence has been attributed to different molecular features and low suspicion of CRC in young symptomatic individuals. When confronting young-onset CRC with older patients, issues such as biological aggressiveness, stage at diagnosis and clinical outcomes seem to differ in many aspects...
July 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28811578/an-epithelial-to-mesenchymal-transition-inducing-potential-of-granulocyte-macrophage-colony-stimulating-factor-in-colon-cancer
#10
Yaqiong Chen, Zhi Zhao, Yu Chen, Zhonglin Lv, Xin Ding, Renxi Wang, He Xiao, Chunmei Hou, Beifen Shen, Jiannan Feng, Renfeng Guo, Yan Li, Hui Peng, Gencheng Han, Guojiang Chen
Growing evidence shows that granulocyte macrophage colony-stimulating factor (GM-CSF) has progression-promoting potentials in certain solid tumors, which is largely attributed to the immunomodulatory function of this cytokine in tumor niches. However, little is known about the effect of GM-CSF on cancer cells. Herein, we show that chronic exposure of colon cancer cells to GM-CSF, which harbor its receptor, leads to occurrence of epithelial to mesenchymal transition (EMT), in time and dose-dependent manners...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28811361/chemoradiotherapy-resistance-in-colorectal-cancer-cells-is-mediated-by-wnt-%C3%AE-catenin-signaling
#11
Georg Emons, Melanie Spitzner, Sebastian Reineke, Janneke Möller, Noam Auslander, Frank Kramer, Yue Hu, Tim Beissbarth, Hendrik A Wolff, Margret Rave-Fränk, Elisabeth Heßmann, Jochen Gaedcke, B Michael Ghadimi, Steven Johnsen, Thomas Ried, Marian Grade
Activation of Wnt/β-catenin signaling plays a central role in the development and progression of colorectal cancer (CRC). The Wnt-transcription factor, TCF7L2, is overexpressed in primary rectal cancers that are resistant to chemoradiotherapy (CRT) and TCF7L2 mediates resistance to CRT. However, it is unclear whether the resistance is mediated by a TCF7L2 inherent mechanism or Wnt/β-catenin signaling in general. Here, inhibition of β-catenin by siRNAs or a small molecule inhibitor (XAV-939) resulted in sensitization of CRC cells to CRT...
August 15, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28811222/antitussive-antispasmodic-bronchodilating-and-cardiac-inotropic-effects-of-the-essential-oil-from-blepharocalyx-salicifolius-leaves
#12
Jehison Jiménez Hernández, María Inés Ragone, Patricia Bonazzola, Arnaldo L Bandoni, Alicia E Consolini
ETHOPHARMACOLOGY RELEVANCE: Blepharocalyx salicifolius (Kunth) O. Berg (Myrtaceae) is a tree native to Argentina and Uruguay that grows and is cultivated along the riverside of the Rio de la Plata. The leaves of this plant species, locally known as "anacahuita" are used in South America to prepare infusions for the empiric treatment of cough and bronchospasm, as well as diarrhoea and other intestinal disorders. Although previous phytochemical studies have been performed with the essential oil extracted from Blepharocalyx salicifolius, pharmacological evidence supporting its traditional use is still lacking...
August 12, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28810597/dual-inhibition-of-met-and-src-kinase-activity-as-a-combined-targeting-strategy-for-colon-cancer
#13
Na Song, Xiujuan Qu, Shizhou Liu, Simeng Zhang, Jing Liu, Jinglei Qu, Huachuan Zheng, Yunpeng Liu, Xiaofang Che
Hepatocyte growth factor (HGF)/MET signaling is implicated in the development of colorectal cancer (CRC) and possesses therapeutic value for various types of cancer. However, inhibition of MET alone has been demonstrated to have limited efficacy. The present study examined the combined inhibition of MET and SRC kinase activity in colon cancer cells. Furthermore, the role of the HGF/MET pathway in ligand-dependent and -independent activation was demonstrated. The single inhibition of MET by knockdown small interfering RNA or inhibitor indicated a limited anti-viability effects without inhibiting the basal phosphorylation levels of SRC, protein kinase B (AKT) or extracellular signal-regulated kinase (ERK)...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28809863/dynamic-plasma-micrornas-are-biomarkers-for-prognosis-and-early-detection-of-recurrence-in-colorectal-cancer
#14
Zixu Yuan, Kelsey Baker, Mary W Redman, Lei Wang, Scott V Adams, Ming Yu, Brandon Dickinson, Karen Makar, Neli Ulrich, Jürgen Böhm, Michelle Wurscher, Maria Westerhoff, Steve Medwell, Ravi Moonka, Mika Sinanan, Alessandro Fichera, Kathy Vickers, William M Grady
BACKGROUND: Plasma microRNAs (miRNAs) are promising non-invasive biomarkers for colorectal cancer (CRC) prognosis. However, the published studies to date have yielded conflicting and inconsistent results for specific plasma miRNAs. METHODS: We have conducted a study using robust assays to assess a panel of nine miRNAs for CRC prognosis and early detection of recurrence. Plasma samples from 144 patients in a prospective CRC cohort study were collected at diagnosis, 6, 12, and 24 months after diagnosis...
August 15, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28808878/role-of-intestinal-microbiome-in-american-ginseng-mediated-colon-cancer-protection-in-high-fat-diet-fed-aom-dss-mice
#15
C-Z Wang, W-H Huang, C-F Zhang, J-Y Wan, Y Wang, C Yu, S Williams, T-C He, W Du, M W Musch, E B Chang, C-S Yuan
OBJECTIVE: Chronic intestinal inflammation is a risk factor for colorectal cancer (CRC) initiation and development. Diets that are rich in Western style fats have been shown to promote CRC. This study was conducted to investigate the role of intestinal microbiome in American ginseng-mediated CRC chemoprevention in a mouse model. The population and diversity of enteric microbiome were evaluated after the ginseng treatment. METHODS: Using an azoxymethane (AOM)/dextran sulfate sodium (DSS)-induced gut inflammation and tumorigenesis mouse model, the effects of oral American ginseng on high fat diet-associated enteric pathology were determined...
August 14, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28808653/acyl-coa-synthetase-5-promotes-the-growth-and-invasion-of-colorectal-cancer-cells
#16
Shihua Ding, Shaohui Tang, Min Wang, Donghai Wu, Haijian Guo
BACKGROUND AND AIMS: Acyl-CoA synthetase 5 (ACS5) has been reported to be associated with the development of various cancers, but the role of it in colorectal cancer (CRC) is not well understood. The present study aimed to explore the potential role of ACS5 in the development and progression of CRC. METHODS: ACS5 expression in CRC tissues and CRC cell lines was examined, and its clinical significance was analyzed. The role of ACS5 in cell proliferation, apoptosis, and invasion was examined in vitro...
2017: Canadian Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28808643/polymorphism-rs16917496-at-the-mir-502-binding-site-of-the-lysine-methyltransferase-5a-set8-and-its-correlation-with-colorectal-cancer-in-iranians
#17
Meysam Mosallayi, Miganoosh Simonian, Sharifeh Khosravi, Ahmad Reza Salehi, Mahsa Khodadoostan, Vahid Sebghatollahi, Azar Baradaran, Rasoul Salehi
BACKGROUND: One of the gene expression regulatory mechanisms is mediated by small noncoding RNAs called microRNA (miRNA). They interact with a recognition sequence located mostly in 3'-untranslated regions (3'-UTRs) of mRNAs. Polymorphisms in miRNAs recognition sequences could affect gene expression which in turn may alter disease susceptibility. SET8, a member of the SET domain-containing methyltransferase, acts in a variety of biological processes such as genomic stability. Here, we report correlation of rs16917496 polymorphism, located in the recognition sequence of miR-502 within 3'-UTR of SET8, with colorectal cancer (CRC) in Iranians...
2017: Advanced Biomedical Research
https://www.readbyqxmd.com/read/28808213/the-interaction-between-the-wnt-%C3%AE-catenin-signaling-cascade-and-pkg-activation-in-cancer
#18
Kevin Lee, Gary A Piazza
The activation of the Wnt/β-catenin signaling cascade has been well studied and documented in colorectal cancer (CRC). The long-term use of non-steroidal anti-inflammatory drugs (NSAIDs) has been shown to reduce the incidence and risk of death from CRC in numerous epidemiological studies. The NSAID sulindac has also been reported to cause regression of precancerous adenomas in individuals with familial adenomatous polyposis who are at high risk of developing CRC. The mechanism responsible for cancer chemopreventive activity of NSAIDs is not well understood but may be unrelated to their cyclooxygenase inhibitory activity...
January 19, 2017: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28804633/fractalkine-c-x3-c-motif-chemokine-ligand-1-as-a-potential-biomarker-for-depression-and-anxiety-in-colorectal-cancer-patients
#19
Diego Oliveira Miranda, Elen Anatriello, Lucas Ribeiro Azevedo, Jessica Cristina Santos, Jessica Fernanda Correa Cordeiro, Fernanda Maris Peria, Milena Flória-Santos, Gabriela Pereira-Da-Silva
Fractalkine, a unique chemokine of the CX3C subfamily, is involved in the pathogenesis of different types of cancer and also in non-immune mechanisms associated with psychiatric disorders. The aim of the present study was to investigate whether there is a correlation between anxiety, depression and fractalkine serum levels in colorectal cancer (CRC) patients in different stages of antitumor therapy. Four groups of patients undergoing treatment (n=20 per group) were evaluated: Patients with CRC who did not undergo surgical resection of the tumor; patients who underwent resection and who did not start adjuvant therapy; patients undergoing chemotherapy for ~3 months; and patients who had completed adjuvant chemotherapy regimen for ~6 months...
August 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28804436/intake-of-different-types-of-red-meat-poultry-and-fish-and-incident-colorectal-cancer-in-women-and-men-results-from-the-malm%C3%A3-diet-and-cancer-study
#20
Alexandra Vulcan, Jonas Manjer, Ulrika Ericson, Bodil Ohlsson
Background : Colorectal cancer (CRC) is considered one of the most common forms of cancer in the Western world. High intake of red and processed meat is considered to increase CRC development. Objective : This study examined associations between intake of red meats, poultry, and fish and incident CRC, and if weight status modifies the associations. Design : In the Malmö Diet and Cancer Study, dietary data was collected through a modified diet history method. Via the Swedish Cancer Registry, 728 cases of CRC were identified during 428 924 person-years of follow-up of 16 944 women and 10 987 men...
2017: Food & Nutrition Research
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