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https://www.readbyqxmd.com/read/28524162/targeted-sequencing-based-analyses-of-candidate-gene-variants-in-ulcerative-colitis-associated-colorectal-neoplasia
#1
Sanjiban Chakrabarty, Vinay Koshy Varghese, Pranoy Sahu, Pradyumna Jayaram, Bhadravathi M Shivakumar, Cannanore Ganesh Pai, Kapaettu Satyamoorthy
BACKGROUND: Long-standing ulcerative colitis (UC) leading to colorectal cancer (CRC) is one of the most serious and life-threatening consequences acknowledged globally. Ulcerative colitis-associated colorectal carcinogenesis showed distinct molecular alterations when compared with sporadic colorectal carcinoma. METHODS: Targeted sequencing of 409 genes in tissue samples of 18 long-standing UC subjects at high risk of colorectal carcinoma (UCHR) was performed to identify somatic driver mutations, which may be involved in the molecular changes during the transformation of non-dysplastic mucosa to high-grade dysplasia...
May 18, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28522900/high-throughput-rna-sequencing-utility-for-diagnosis-and-prognosis-in-colon-diseases
#2
EDITORIAL
Mamie Gao, Allen Zhong, Neil Patel, Chiraag Alur, Dinesh Vyas
RNA sequencing is the use of high throughput next generation sequencing technology to survey, characterize, and quantify the transcriptome of a genome. RNA sequencing has been used to analyze the pathogenesis of several malignancies such melanoma, lung cancer, and colorectal cancer. RNA sequencing can identify differential expression of genes (DEG's), mutated genes, fusion genes, and gene isoforms in disease states. RNA sequencing has been used in the investigation of several colorectal diseases such as colorectal cancer, inflammatory bowel disease (ulcerative colitis and Crohn's disease), and irritable bowel syndrome...
April 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28506682/colorectal-cancer-inflammatory-bowel-disease-nexus-and-felony-of-escherichia-coli
#3
REVIEW
Abdul Arif Khan, Zakir Khan, Abdul Malik, Mohd Abul Kalam, Phillip Cash, Mohd Tashfeen Ashraf, Aws Alshamsan
Colorectal cancer (CRC) has a multifactorial etiology. Although the exact cause behind CRC is still elusive, recent studies have indicated microbial involvement in its etiology. Escherichia coli has emerged as an important factor in CRC development since the bacterium can cause changes in the gut that lead to cancerous transformation. A number of studies indicate that chronic inflammation induced by microorganisms, including E. coli, during inflammatory bowel disease (IBD) predisposes an individual to CRC. The evidence that support the role of E...
May 12, 2017: Life Sciences
https://www.readbyqxmd.com/read/28494470/comorbid-conditions-delay-diagnosis-of-colorectal-cancer-a-cohort-study-using-electronic-primary-care-records
#4
Luke T A Mounce, Sarah Price, Jose M Valderas, William Hamilton
BACKGROUND: Pre-existing non-cancer conditions may complicate and delay colorectal cancer diagnosis. METHOD: Incident cases (aged ⩾40 years, 2007-2009) with colorectal cancer were identified in the Clinical Practice Research Datalink, UK. Diagnostic interval was defined as time from first symptomatic presentation of colorectal cancer to diagnosis. Comorbid conditions were classified as 'competing demands' (unrelated to colorectal cancer) or 'alternative explanations' (sharing symptoms with colorectal cancer)...
May 11, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28494341/dyospiros-kaki-phenolics-inhibit-colitis-and-colon-cancer-cell-proliferation-but-not-gelatinase-activities
#5
Rosa Direito, Ana Lima, João Rocha, Ricardo Boavida Ferreira, Joana Mota, Patrícia Rebelo, Adelaide Fernandes, Rui Pinto, Paula Alves, Rosário Bronze, Bruno Sepodes, Maria-Eduardo Figueira
Polyphenols from persimmon (Diospyros kaki) have demonstrated radical-scavenging and antiinflammatory activities; however, little is known about the effects of persimmon phenolics on inflammatory bowel diseases (IBD) and colorectal cancer (CRC). Therefore, we aimed in this work to characterize the antiinflammatory and antiproliferative effects of a persimmon phenolic extract (80% acetone in water), using an in vivo model of experimental colitis and a model of cancer cell invasion. Our results show, for the first time, a beneficial effect of a persimmon phenolic extract in the attenuation of experimental colitis and a potential antiproliferative effect on cultured colon cancer cells...
March 30, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28490420/testing-the-effectiveness-of-a-primary-care-intervention-to-improve-uptake-of-colorectal-cancer-screening-a-randomized-controlled-trial-protocol
#6
Natalie Dodd, Mariko Leanne Carey, Elise Mansfield, Christopher Oldmeadow
BACKGROUND: Screening for colorectal cancer (CRC) significantly reduces mortality associated with this disease. In Australia, the National Bowel Cancer Screening Program provides regular fecal occult blood tests (FOBT) for those aged 50 to 74 years, however, participation rates in the program have plateaued at 36%. Given low uptake in the National Bowel Cancer Screening Program, it is necessary to explore alternate methods to increase CRC screening rates. Primary care is a promising adjunct setting to test methods to increase CRC screening participation...
May 10, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28475382/dysplasia-and-colorectal-cancer-surveillance-in-inflammatory-bowel-disease
#7
Samba Siva Reddy Pulusu, Ian C Lawrance
Inflammatory bowel disease (IBD) patients are at an increased risk of developing colorectal cancer (CRC), a devastating complication of which intestinal dysplasia is the precursor. Considerable progress has been made to determine CRC risk in IBD, identification & management of dysplasia and preventative methods. Traditionally, surveillance colonoscopies with random colonic biopsies was used. However recent data suggests that chromoendoscopy is a better method of surveillance. Using 5-aminosalicylic acid agents primarily for chemoprevention is an ongoing debate however, when prescribed along with other strategies to control inflammation, their use is considered of benefit...
May 5, 2017: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28466432/macrophage-subset-expressing-cd169-in-peritoneal-cavity-regulated-mucosal-inflammation-together-with-lower-levels-of-ccl22
#8
Dan Wang, Qiuting Li, Yang Yang, Shengyu Hao, Xiaolei Han, Jia Song, Yue Yin, Xiangzhi Li, Masato Tanaka, Chun-Hong Qiu
Crohn's disease (CD) and ulcerative colitis (UC) are the most widely known types of inflammatory bowel diseases (IBD) and have been paid more attention due to their increasing incidence and a substantial increase in the risk of colorectal cancer (CRC). However, the phenotype and, more importantly, the function in the regulation of mucosal inflammation by different macrophages are poorly understood, even though macrophages constitute a major subset of intestinal myeloid cells. The results firstly showed that the subset of peritoneal CD11b(+)CD169(+) macrophages increased and CCL22 expression level decreased significantly during the DSS-induced colitis...
May 2, 2017: Inflammation
https://www.readbyqxmd.com/read/28465070/microbiome-and-colorectal-cancer-unraveling-host-microbiota-interactions-in-colitis-associated-colorectal-cancer-development
#9
REVIEW
Mingsong Kang, Alberto Martin
Dysbiosis of gut microbiota occurs in many human chronic immune-mediated diseases, such as inflammatory bowel disease (IBD) and colitis-associated colorectal cancer (CAC). Reciprocally, uncontrolled immune responses, that may or may not be induced by dysbiosis, are central to the development of IBD and CAC. There has been a surge of interest in investigating the relationship between microbiota, inflammation and CAC. In this review, we discuss recent findings related to gut microbiota and chronic immune-mediated diseases, such as IBD and CAC...
April 29, 2017: Seminars in Immunology
https://www.readbyqxmd.com/read/28453756/malignancies-in-patients-with-inflammatory-bowel-disease-results-from-20-years-of-follow-up-in-the-ibsen-study
#10
Øistein Hovde, Marte Lie Høivik, Magne Henriksen, Inger Camilla Solberg, Milada Cvancarova Småstuen, Bjørn A Moum
Background and Aims: Whether patients with inflammatory bowel diseases [IBDs] have increased risk of developing cancer has been debated. The aims of the study were to determine the prevalence of intestinal/extraintestinal cancers in an IBD cohort 20 years after diagnosis and to assess whether these patients had an increased cancer-specific risk compared with a matched control population. Methods: Patients with ulcerative colitis [UC] and Crohn's disease [CD] diagnosed 1990-1993 have been prospectively followed up for 20 years...
May 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28447368/optimization-of-aqueous-extraction-and-biological-activity-of-harpagophytum-procumbens-root-on-ex-vivo-rat-colon-inflammatory-model
#11
Marcello Locatelli, Claudio Ferrante, Simone Carradori, Daniela Secci, Lidia Leporini, Annalisa Chiavaroli, Sheila Leone, Lucia Recinella, Giustino Orlando, Sara Martinotti, Luigi Brunetti, Michele Vacca, Luigi Menghini
Harpagophytum procumbens has a long story of use for the treatment of inflammatory diseases. Considering both the antiinflammatory effects of H. procumbens in multiple tissues and the stability of harpagoside in artificial intestinal fluid, the aim of the present study was to explore the possible protective role of a microwave-assisted aqueous Harpagophytum extract (1-1000 μg/mL) on mouse myoblast C2C12 and human colorectal adenocarcinoma HCT116 cell lines, and isolated rat colon specimens challenged with lipopolysaccharide (LPS), a validated ex vivo model of acute ulcerative colitis...
April 26, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28436302/gene-set-enrichment-analysis-a-genome-wide-expression-profile-based-strategy-for-discovering-functional-microrna-disease-relationships
#12
Yin Ni, Caiyun Song, Shuqing Jin, Zhoufeng Chen, Ming Ni, Lu Han, Jiansheng Wu, Yin Jin
Objective To explore stable and functional microRNA (miRNA)-disease relationships using a genome-wide expression profile pattern matching strategy. Methods We applied the ranked microarray pattern matching strategy Gene Set Enrichment Analysis to identify miRNA permutations with similar expression patterns to diseases. We also used quantitative reverse transcription PCR to validate the predicted expression levels of miRNAs in three diseases: inflammatory bowel disease (IBD), oesophageal cancer, and colorectal cancer...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28428272/hur-small-molecule-inhibitor-elicits-differential-effects-in-adenomatosis-polyposis-and-colorectal-carcinogenesis
#13
Michaela Lang, David Berry, Katharina Passecker, Ildiko Mesteri, Sabin Bhuju, Florian Ebner, Vitaly Sedlyarov, Rayko Evstatiev, Kyle Dammann, Alexander Loy, Orest Kuzyk, Pavel Kovarik, Vineeta Khare, Martin Beibel, Guglielmo Roma, Nicole Meisner-Kober, Christoph Gasche
HuR is an RNA-binding protein implicated in immune homeostasis and various cancers, including colorectal cancer. HuR binding to AU-rich elements within the 3' untranslated region of mRNAs encoding oncogenes, growth factors, and various cytokines leads message stability and translation. In this study, we evaluated HuR as a small-molecule target for preventing colorectal cancer in high-risk groups such as those with familial adenomatosis polyposis (FAP) or inflammatory bowel disease (IBD). In human specimens, levels of cytoplasmic HuR were increased in colonic epithelial cells from patients with IBD, IBD-cancer, FAP-adenoma, and colorectal cancer, but not in patients with IBD-dysplasia...
May 1, 2017: Cancer Research
https://www.readbyqxmd.com/read/28404115/advances-in-primary-sclerosing-cholangitis
#14
REVIEW
Jennifer L Horsley-Silva, Elizabeth J Carey, Keith D Lindor
Primary sclerosing cholangitis is a chronic, progressive cholangiopathy that frequently affects men and is associated with inflammatory bowel disease. Although the cause of the disease is still debated, a genetic association and link to immune-mediated disease triggered by environmental factors are thought to contribute. The disease can present as isolated imaging abnormalities, biochemical changes, cholangiocarcinoma, or end-stage complications such as cirrhosis. Symptoms of primary sclerosing cholangitis include fatigue, jaundice, pruritus, or steatorrhoea...
September 2016: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28387757/gfi1-downregulation-promotes-inflammation-linked-metastasis-of-colorectal-cancer
#15
Wenjing Xing, Yun Xiao, Xinliang Lu, Hongyan Zhu, Xiangchuan He, Wei Huang, Elsa S Lopez, Jerry Wong, Huanyu Ju, Linlu Tian, Fengmin Zhang, Hongwei Xu, Sheng Dian Wang, Xia Li, Michael Karin, Huan Ren
Inflammation is frequently associated with initiation, progression, and metastasis of colorectal cancer (CRC). Here, we unveil a CRC-specific metastatic programme that is triggered via the transcriptional repressor, GFI1. Using data from a large cohort of clinical samples including inflammatory bowel disease and CRC, and a cellular model of CRC progression mediated by cross-talk between the cancer cell and the inflammatory microenvironment, we identified GFI1 as a gating regulator responsible for a constitutively activated signalling circuit that renders CRC cells competent for metastatic spread...
May 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28383652/th1-and-innate-lymphoid-cells-accumulate-in-primary-sclerosing-cholangitis-associated-inflammatory-bowel-disease
#16
Agnes Gwela, Priya Siddhanathi, Roger W Chapman, Simon Travis, Fiona Powrie, Carolina V Arancibia-Cárcamo, Alessandra Geremia
Background and Aims: Primary sclerosing cholangitis (PSC) is an idiopathic chronic disorder of the hepatobiliary system associated with inflammatory bowel disease (IBD), mainly ulcerative colitis (UC). Colitis in patients with PSC and UC (PSC-UC) exhibits characteristic features and is linked to increased colon cancer risk. Genetic studies have identified immune-related susceptibility genes that only partially overlap with those involved in IBD. These observations suggest that PSC-UC may represent a distinct form of IBD...
April 5, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28374084/prognosis-of-colorectal-cancer-in-inflammatory-bowel-disease-data-from-a-state-registry
#17
EDITORIAL
Thomas A Ullman, Steven H Itzkowitz
No abstract text is available yet for this article.
April 3, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28369422/ileal-pouch-anal-anastomosis-for-dysplasia-or-cancer-complicating-inflammatory-bowel-disease-is-total-mesorectal-excision-always-mandatory-an-analysis-of-36-consecutive-patients
#18
Chloé Coton, Léon Maggiori, Diane Mège, Clotilde Naudot, Justine Prost À la Denise, Yves Panis
Background & Aim: The extent of lymph node harvesting during surgery for colorectal neoplasm (dysplasia and/or cancer) complicating inflammatory bowel disease (IBD) is the matter of debate. This study aimed to assess the risk of invasive rectal cancer in patients undergoing ileal pouch-anal anastomosis (IPAA) for colonic neoplasm complicating IBD, and thus to clarify if a systematic total mesorectal excision (TME) should be systematically performed or not in those patients. Methods: From 1998 to 2015, all patients who underwent IPAA for colorectal neoplasm complicating IBD were included...
March 22, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28367816/-contribution-of-autophagy-to-intestinal-homeostasis-and-pathology
#19
Coralie Trentesaux, Marie Fraudeau, Béatrice Romagnolo
The intestinal epithelial cells are crucial mediators of intestinal homeostasis. The intestinal epithelium is the largest of the body's mucosal surfaces exposed to the environment. Intestinal homeostasis is essentially based on the maintenance of intestinal epithelial cell integrity, a complex process involving a balance between the intestinal flora, the immune system and the energy expenses linked to metabolism. Autophagy appears to be central to these functions and allows the epithelium to adapt to its environment and different stress situations by participating in antibacterial defense, by controlling the composition of the intestinal flora and the immune response, and by participating in energy homeostasis...
March 2017: Médecine Sciences: M/S
https://www.readbyqxmd.com/read/28352344/diffusion-weighted-whole-body-imaging-with-background-body-signal-suppression-t2-image-fusion-for-the-diagnosis-of-colorectal-polyp-and-cancer
#20
Minoru Tomizawa, Fuminobu Shinozaki, Yoshitaka Uchida, Katsuhiro Uchiyama, Kazunori Fugo, Takafumi Sunaoshi, Aika Ozaki, Eriko Sugiyama, Akira Baba, Daisuke Kano, Misaki Shite, Ryota Haga, Yoshiya Fukamizu, Satoshi Kagayama, Rumiko Hasegawa, Yoshinori Shirai, Yasufumi Motoyoshi, Takao Sugiyama, Shigenori Yamamoto, Takashi Kishimoto, Naoki Ishige
Diffusion-weighted whole-body imaging with background body signal suppression/T2 image fusion (DWIBS/T2) is useful for the diagnosis of cancer as it presents a clear contrast between cancerous and non-cancerous tissue. The present study investigated the limitations and advantages of DWIBS/T2 with regards to the diagnosis of colorectal polyp (CP) or cancer (CRC). The current study included patients diagnosed with CP or CRC following colonoscopy, who were subjected to DWIBS/T2 between July 2012 and March 2015...
February 2017: Experimental and Therapeutic Medicine
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