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IBD-associated colorectal cancer

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https://www.readbyqxmd.com/read/29420429/elevated-venous-thromboembolism-risk-following-colectomy-for-ibd-is-equal-to-those-for-colorectal-cancer-for-ninety-days-after-surgery
#1
Fadwa Ali, Sadeer G Al-Kindi, Jacqueline J Blank, Carrie Y Peterson, Kirk A Ludwig, Timothy J Ridolfi
BACKGROUND: The risk of postoperative venous thromboembolism is high in patients with colon cancer and IBD. Although The American Society of Colon and Rectal Surgeons suggests posthospital prophylaxis after surgery in patients with colon cancer, there are no such recommendations for patients with IBD. OBJECTIVE: This study aims to analyze the incidence and risk factors for postoperative venous thromboembolism. DESIGN: This was a retrospective review using the Explorys platform...
March 2018: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/29416921/inhibition-of-rac-family-protein-impairs-colitis-and-colitis-associated-cancer-in-mice
#2
Yandong Guo, Jing Xiong, Jing Wang, Jing Wen, Fachao Zhi
The prevalence of inflammatory bowel disease (IBD) has increased worldwide and IBD has been demonstrated to promote the development of colorectal cancer. The Rac family of proteins are involved in key mitogenic pathways. However, to the best of our knowledge, no prior studies have investigated the expression and role of Rac on colitis and colitis-associated cancer (CAC). In the current study, Rac expression in patients with colitis was analyzed according to the expression value from NCBI GEO database (GDS3268)...
2018: American Journal of Cancer Research
https://www.readbyqxmd.com/read/29416670/genomic-landscape-of-colitis-associated-cancer-indicates-the-impact-of-chronic-inflammation-and-its-stratification-by-mutations-in-the-wnt-signaling
#3
Masashi Fujita, Nagahide Matsubara, Ikuo Matsuda, Kazuhiro Maejima, Ayako Oosawa, Tomoki Yamano, Akihiro Fujimoto, Mayuko Furuta, Kaoru Nakano, Aya Oku-Sasaki, Hiroko Tanaka, Yuichi Shiraishi, Raúl Nicolás Mateos, Kenta Nakai, Satoru Miyano, Naohiro Tomita, Seiichi Hirota, Hiroki Ikeuchi, Hidewaki Nakagawa
Inflammatory bowel disease (IBD) increases the risk of colorectal cancer, known as colitis-associated cancer (CAC). It is still unclear what driver mutations are caused by chronic inflammation and lead to CAC development. To get insight into this issue, we investigated somatic alterations in CAC. We performed exome sequencing of 22 fresh CACs and targeted sequencing of 43 genes on 90 archive specimens from Japanese CAC patients, of which 58 were ulcerative colitis (UC) and 32 were Crohn's disease (CD). Consistently with the previous reports, TP53 was commonly mutated (66%) whereas APC, KRAS and SMAD4 were mutated less frequently (16%, 11% and 11%, respectively)...
January 2, 2018: Oncotarget
https://www.readbyqxmd.com/read/29378311/high-risk-of-advanced-colorectal-neoplasia-in-patients-with-primary-sclerosing-cholangitis-associated-with-inflammatory-bowel-disease
#4
Shailja C Shah, Joren R Ten Hove, Daniel Castaneda, Carolina Palmela, Erik Mooiweer, Jean-Frédéric Colombel, Noam Harpaz, Thomas A Ullman, Ad A van Bodegraven, Jeroen M Jansen, Nofel Mahmmod, Andrea E van der Meulen-de Jong, Cyriel Y Ponsioen, Christine J van der Woude, Bas Oldenburg, Steven H Itzkowitz, Joana Torres
BACKGROUND & AIMS: Patients with inflammatory bowel disease (IBD) and primary sclerosing cholangitis (PSC, termed PSC-IBD) are at increased risk for colorectal cancer (CRC), but their risk following a diagnosis of low-grade dysplasia (LGD) is not well described. We aimed to determine the rate of advanced colorectal neoplasia (aCRN), defined as high-grade dysplasia and/or colorectal cancer, following a diagnosis of indefinite dysplasia or LGD in this population. METHODS: We performed a retrospective, longitudinal study of 1911 patients with colonic IBD (293 with PSC and 1618 without PSC) who underwent more than 2 surveillance colonoscopies from 2000 through 2015 in the Netherlands or the United States (9265 patient-years of follow up)...
January 25, 2018: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29378308/symptoms-do-not-correlate-with-findings-from-colonoscopy-in-children-with-inflammatory-bowel-disease-and-primary-sclerosing-cholangitis
#5
Amanda Ricciuto, Jennifer Fish, Nicholas Carman, Thomas D Walters, Peter C Church, Bettina E Hansen, Eileen Crowley, Iram Siddiqui, Geoffrey C Nguyen, Binita M Kamath, Anne M Griffiths
BACKGROUND & AIMS: Approximately 75% of children with primary sclerosing cholangitis (PSC) also have inflammatory bowel disease (IBD). IBD in patients with PSC (PSC-IBD) often has a unique phenotype, including a mild clinical course, yet it is associated with an increased risk of colorectal cancer compared to colonic IBD without PSC. We investigated whether subclinical endoscopic and histologic inflammation could account for the increased risk of colorectal cancer in patients with PSC-IBD, and whether these patients have increased fecal levels of calprotectin, a marker of inflammation...
January 25, 2018: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29370346/reduced-risk-of-inflammatory-bowel-disease-associated-colorectal-neoplasia-with-use-of-thiopurines-a-systematic-review-and-meta-analysis
#6
Zhehui Zhu, Zubing Mei, Yuegui Guo, Guanghui Wang, Tingyu Wu, Ximao Cui, Zhenyu Huang, Yilian Zhu, Dongpeng Wen, Jinlve Song, Hailan He, Weimin Xu, Long Cui, Chenying Liu
Background & Aims: The association between thiopurines and colorectal neoplasia risk remains controversial in inflammatory bowel disease (IBD) patients. We performed a systematic review and meta-analysis examining this association. Methods: A comprehensive search of the PubMed, EMBASE and Cochrane Library databases was performed to identify relevant literature. Random-effects models were applied to calculate the pooled odds ratio (OR) and relative risk (RR) with corresponding 95% confidence intervals (CIs) among case-control and cohort studies, respectively...
January 23, 2018: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/29361103/reviewing-the-risk-of-colorectal-cancer-in-inflammatory-bowel-disease-after-liver-trasnplantation-for-primary-sclerosing-cholangitis
#7
Bhavana Bhagya Rao, Bret Lashner, Kris V Kowdley
The presence of concomitant primary sclerosing cholangitis (PSC) with inflammatory bowel disease (IBD) represents a distinct disease phenotype that carries a higher risk of colorectal cancer (CRC) than the average IBD patient. Given that liver transplantation (LT) is the only treatment that offers a survival benefit in PSC patients with hepatic dysfunction, management decisions in IBD patients' post-LT for PSC are frequently encountered. One such consideration is the risk of CRC in this immunosuppressed cohort...
January 18, 2018: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/29359823/detection-and-characterization-of-colitis-associated-cancer-dysplasia-based-on-reports-from-the-jddw2017-and-meta-analyses-of-prospective-studies-concerning-endoscopic-procedure
#8
EDITORIAL
Mikihiro Fujiya
Inflammatory bowel disease (IBD) is a major risk factor for colorectal cancer. Surveillance colonoscopy is presumably important for the early detection of colitis-associated cancer/dysplasia (CC/Ds). However, it is not easy to detect certain lesions in the inflamed mucosa using white-light endoscopy (WLE), even during the remission phase. Therefore, WLE with random biopsies has been the traditional approach for dysplasia detection. Recent advances in endoscopic technologies, including high-definition endoscopy and image-enhanced endoscopy, have improved the visibility of dysplastic lesions, suggesting that novel endoscopic procedures with a target biopsy are suitable for the surveillance of CC/Ds[1]...
January 23, 2018: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/29322404/in-vivo-models-of-inflammatory-bowel-disease-and-colitis-associated-cancer
#9
Ka Yee Fung, Tracy Putoczki
A single layer of epithelial cells separates luminal antigens from the host immune system throughout the gastrointestinal tract. A breakdown in the integrity of the epithelial barrier can lead to chronic inflammation, which is associated with numerous complications including cancer. Here we describe three experimental protocols to chemically induce acute and chronic inflammatory bowel disease (IBD) symptoms and colitis-associated colorectal cancer (CRC) progression. These in vivo mouse models are based on the induction of damage to the colonic epithelium, resulting in an inflammatory and wound healing response...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29294595/should-asymptomatic-young-men-with-iron-deficiency-anemia-necessarily-undergo-endoscopy
#10
Nam Hee Kim, Jung Ho Park, Dong Il Park, Chong Il Sohn, Kyuyong Choi, Yoon Suk Jung
Background/Aims: There has been no evidence for the necessity of endoscopy in asymptomatic young men with iron deficiency anemia (IDA). To determine whether endoscopy should be recommended in asymptomatic young men with IDA, we compared the prevalence of gastrointestinal (GI) lesions between young men (< 50 years) with IDA and those without IDA. Methods: We conducted a case-control study on asymptomatic young men aged < 50 years who underwent both esophagogastroduodenoscopy (EGD) and colonoscopy as part of a health checkup between 2010 and 2014...
January 5, 2018: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/29275959/mtorc1-inactivation-promotes-colitis-induced-colorectal-cancer-but-protects-from-apc-loss-dependent-tumorigenesis
#11
Marta Brandt, Tatiana P Grazioso, Mohamad-Ali Fawal, Krishna S Tummala, Raul Torres-Ruiz, Sandra Rodriguez-Perales, Cristian Perna, Nabil Djouder
Dietary habits that can induce inflammatory bowel disease (IBD) are major colorectal cancer (CRC) risk factors, but mechanisms linking nutrients, IBD, and CRC are unknown. Using human data and mouse models, we show that mTORC1 inactivation-induced chromosomal instability impairs intestinal crypt proliferation and regeneration, CDK4/6 dependently. This triggers interleukin (IL)-6-associated reparative inflammation, inducing crypt hyper-proliferation, wound healing, and CRC. Blocking IL-6 signaling or reactivating mTORC1 reduces inflammation-induced CRC, so mTORC1 activation suppresses tumorigenesis in IBD...
January 9, 2018: Cell Metabolism
https://www.readbyqxmd.com/read/29216349/developing-a-standard-set-of-patient-centred-outcomes-for-inflammatory-bowel-disease-an-international-cross-disciplinary-consensus
#12
Andrew H Kim, Charlotte Roberts, Brian G Feagan, Rupa Banerjee, Willem Bemelman, Keith Bodger, Marc Derieppe, Axel Dignass, Richard Driscoll, Ray Fitzpatrick, Janette Gaarentstroom-Lunt, Peter D Higgins, Paulo Gustavo Kotze, Jillian Meissner, Marian O'Connor, Zhi-Hua Ran, Corey A Siegel, Helen Terry, Welmoed K van Deen, C Janneke van der Woude, Alandra Weaver, Suk-Kyun Yang, Bruce E Sands, Séverine Vermeire, Simon Pl Travis
Background and Aims: Success in delivering value-based healthcare involves measuring outcomes that matter most to patients. Our aim was to develop a minimum Standard Set of patient-centred outcome measures for inflammatory bowel disease (IBD), for use in different healthcare settings. Methods: An international working group (n=25) representing patients, patient associations, gastroenterologists, surgeons, specialist nurses, IBD registries and patient-reported outcome measure (PROM) methodologists participated in a series of teleconferences incorporating a modified Delphi process...
December 5, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/29203393/pyrin-inflammasome-regulates-tight-junction-integrity-to-restrict-colitis-and-tumorigenesis
#13
Deepika Sharma, Ankit Malik, Clifford S Guy, Rajendra Karki, Peter Vogel, Thirumala-Devi Kanneganti
BACKGROUND & AIMS: Inflammatory bowel diseases (IBD) increase risk for colorectal cancer. Mutations in the Mediterranean fever gene (MEFV or pyrin) are associated with hereditary autoinflammatory disease and severe IBD. Expression of MEFV, a sensor protein that the initiates assembly of the inflammasome complex, is increased in colon biopsies from patients with IBD. We investigated the role of pyrin in intestinal homeostasis in mice. METHODS: Mefv-/- mice and C57/BL6 mice (controls) were given azoxymethane followed by multiple rounds of dextran sodium sulfate (DSS) to induce colitis and tumorigenesis...
December 1, 2017: Gastroenterology
https://www.readbyqxmd.com/read/29189768/inflammatory-bowel-disease-adversely-impacts-colorectal-cancer-surgery-short-term-outcomes-and-health-care-resource-utilization
#14
Mitchell Ramsey, Somashekar G Krishna, Peter P Stanich, Syed Husain, Edward J Levine, Darwin Conwell, Alice Hinton, Cheng Zhang
OBJECTIVES: Inflammatory bowel disease (IBD) is associated with an increased risk of colorectal cancer (CRC) compared to patients without IBD. There is a lack of population-based data evaluating the in-patient surgical outcomes of CRC in IBD patients. We sought to compare the hospital outcomes of CRC surgery between patients with and without IBD. METHODS: We used the National Inpatient Sample (2008-2012) and Nationwide Readmissions Database (NRD, 2013) and selected all adult patients (age ≥18 years) with ulcerative colitis (UC) or Crohn's disease (CD) who underwent CRC surgery...
November 30, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/29154194/micrornas-in-intestinal-barrier-function-inflammatory-bowel-disease-and-related-cancers-their-effects-and-therapeutic-potentials
#15
REVIEW
Esmerina Tili, Jean-Jacques Michaille, Victoria Piurowski, Brooke Rigot, Carlo M Croce
The initiation and development or inflammatory bowel disease (IBD) and associated colorectal cancers, have been linked to inflammation. MicroRNAs are non-coding regulators of gene expression that have gained great attention due to their capability to regulate the expression of a number of target transcripts. It is now generally admitted that microRNAs are instrumental in gut pathologies, in particular through their targeting of transcripts encoding proteins of the intestinal barrier (IB) and their regulators...
November 15, 2017: Current Opinion in Pharmacology
https://www.readbyqxmd.com/read/29118756/th17-cell-and-epithelial-cell-crosstalk-during-inflammatory-bowel-disease-and-carcinogenesis
#16
REVIEW
Jan Kempski, Leonie Brockmann, Nicola Gagliani, Samuel Huber
The intestine is colonized by hundreds of different species of commensal bacteria, viruses, and fungi. Therefore, the intestinal immune system is constantly being challenged by foreign antigens. The immune system, the commensal microbiota, and the intestinal epithelial surface have to maintain a tight balance to guarantee defense against potential pathogens and to prevent chronic inflammatory conditions at the same time. Failure of these mechanisms can lead to a vicious cycle in which a perpetual tissue damage/repair process results in a pathological reorganization of the normal mucosal surface...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29081776/innate-lymphoid-cells-in-intestinal-inflammation
#17
REVIEW
Alessandra Geremia, Carolina V Arancibia-Cárcamo
Inflammatory bowel disease (IBD) is a chronic inflammatory disorder of the intestine that encompasses Crohn's disease (CD) and ulcerative colitis. The cause of IBD is unknown, but the evidence suggests that an aberrant immune response toward the commensal bacterial flora is responsible for disease in genetically susceptible individuals. Results from animal models of colitis and human studies indicate a role for innate lymphoid cells (ILC) in the pathogenesis of chronic intestinal inflammation in IBD. ILC are a population of lymphocytes that are enriched at mucosal sites, where they play a protective role against pathogens including extracellular bacteria, helminthes, and viruses...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29078383/quantitative-proteomics-identifies-steap4-as-a-critical-regulator-of-mitochondrial-dysfunction-linking-inflammation-and-colon-cancer
#18
Xiang Xue, Bryce X Bredell, Erik R Anderson, Angelical Martin, Christopher Mays, Hiroko Nagao-Kitamoto, Sha Huang, Balázs Győrffy, Joel K Greenson, Karin Hardiman, Jason R Spence, Nobuhiko Kamada, Yatrik M Shah
Inflammatory bowel disease (IBD) is a chronic inflammatory disorder and is a major risk factor for colorectal cancer (CRC). Hypoxia is a feature of IBD and modulates cellular and mitochondrial metabolism. However, the role of hypoxic metabolism in IBD is unclear. Because mitochondrial dysfunction is an early hallmark of hypoxia and inflammation, an unbiased proteomics approach was used to assess the mitochondria in a mouse model of colitis. Through this analysis, we identified a ferrireductase: six-transmembrane epithelial antigen of prostate 4 (STEAP4) was highly induced in mouse models of colitis and in IBD patients...
November 7, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29072418/colitis-associated-colorectal-cancer-in-patients-with-inflammatory-bowel-disease
#19
Se-Jin Baek, Seon-Hahn Kim
Colitis-associated colorectal cancer (CACRC) is a major concern in patients with long-standing inflammatory bowel disease (IBD). CACRC can develop under the influence of several risk factors including longer duration and disease extent and shows clinical and molecular features different from those of sporadic CRC. Several academic societies have recommended surveillance guidelines for CACRC that develops in IBD patients. Patients are stratified according to risk for CRC and differentiated by surveillance colonoscopy and management...
December 2017: Minerva Chirurgica
https://www.readbyqxmd.com/read/29027468/serrated-polyposis-syndrome-associated-with-long-standing-inflammatory-bowel-disease
#20
Jesús Castro, Miriam Cuatrecasas, Francesc Balaguer, Elena Ricart, María Pellisé
Inflammatory bowel disease (IBD) patients are at an increased risk of developing colorectal cancer (CRC), which is thought to develop via the adenoma-carcinoma pathway. Since the discovery of the serrated carcinogenesis pathway and serrated polyposis syndrome (SPS), the incidence of carcinomas arising from serrated lesions in IBD patients has increased. We report three cases of long-standing IBD patients with associated serrated polyposis syndrome. At present, the pathophysiology of serrated lesions in IBD patients is not fully understood and there is a lack of strong evidence to confirm whether the manifestation of both conditions represents an increased risk of developing cancer...
November 2017: Revista Española de Enfermedades Digestivas
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