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https://www.readbyqxmd.com/read/29145239/two-case-reports-colorectal-adenocarcinoma-in-children
#1
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/29142750/evaluation-of-epidermal-growth-factor-receptor-serum-levels-and-their-association-with-clinicopathological-characteristics-in-patients-with-colorectal-cancer
#2
Mehmet Karabulut, Cigdem Usul Afsar, Halil Alıs, Ebru Oran, Senem Karabulut, Cevher Akarsu, Nuri Alper Sahbaz, Alpen Yahya Gümüsoglu, Elif Bilgin, Nuri Faruk Aykan
Colorectal cancer (CRC) is a major public health concern and one of the leading causes of cancer-related mortality worldwide. The aim of the present study was to determine the serum epidermal growth factor receptor (sEGFR) levels in healthy volunteers and patients with CRC, to determine the association between tumor marker levels and clinicopathological findings, and investigate its prognostic value. A total of 140 patients with CRC were enrolled in the present study. Pre-treatment sEGFR levels were determined using ELISA...
November 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29134398/micrornas-and-their-role-for-t-stage-determination-and-lymph-node-metastasis-in-early-colon-carcinoma
#3
Melanie Rammer, Gerald Webersinke, Sophie Haitchi-Petnehazy, Eva Maier, Hubert Hackl, Pornpimol Charoentong, Theodora Malli, Maria Steinmair, Andreas L Petzer, Holger Rumpold
Worldwide, colon cancer is among the most common cancer entities. Understanding the molecular background is the key to enable accurate stage determination, which is crucial to assess optimal therapy options. The search for preoperative biomarkers is ongoing. In recent years, several studies have proposed a diagnostic and prognostic role for miRNAs in cancer. Aim of this study was to evaluate miRNA expression patterns correlating with tumor stage, especially lymph node metastasis, in primary colon carcinoma tissue...
November 13, 2017: Clinical & Experimental Metastasis
https://www.readbyqxmd.com/read/29130549/concomitant-idh-wildtype-glioblastoma-and-idh1-mutant-anaplastic-astrocytoma-in-a-patient-with-constitutional-mismatch-repair-deficiency-syndrome
#4
Francesca Galuppini, Enrico Opocher, Uri Tabori, Isabella Mammi, Melissa Edwards, Britany Campbell, Jacalyn Kelly, Alessandra Viel, Michele Quaia, Francesca Rivieri, Domenico D'Avella, Antonella Arcella, Felice Giangaspero, Matteo Fassan, Marina Paola Gardiman
Constitutional mismatch repair deficiency (CMMRD) is a rare and often under-recognized tumour predisposition syndrome, presenting with both extracranial and malignant brain tumours that occur in children and/or young adults [1]. The genetic defects underlying this disease are biallelic germline mutations in one of the DNA mismatch repair (MMR) genes leading to a constitutional DNA repair defect that causes a cancer predisposition syndrome with early onset [2]. This mechanism is different from Lynch syndrome (LS) where a heterozygous germline loss-of-function mutation is observed and the patients are more prone to develop colon and genitourinary cancers as adults [1]...
November 12, 2017: Neuropathology and Applied Neurobiology
https://www.readbyqxmd.com/read/29123962/distinctive-features-of-tumor-infiltrating-%C3%AE-%C3%AE-t-lymphocytes-in-human-colorectal-cancer
#5
S Meraviglia, E Lo Presti, M Tosolini, C La Mendola, V Orlando, M Todaro, V Catalano, G Stassi, G Cicero, S Vieni, J J Fourniè, F Dieli
γδ T cells usually infiltrate many different types of cancer, but it is unclear whether they inhibit or promote tumor progression. Moreover, properties of tumor-infiltrating γδ T cells and those in the corresponding normal tissue remain largely unknown. Here we have studied features of γδ T cells in colorectal cancer, normal colon tissue and peripheral blood, and correlated their levels with clinicopathologic hallmarks. Flow cytometry and transcriptome analyses showed that the tumor comprised a highly variable rate of TILs (5-90%) and 4% γδ T cells on average, with the majority expressing Vδ1...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29116438/staging-with-computed-tomography-of-patients-with-colon-cancer
#6
M L Malmstrøm, S Brisling, T W Klausen, A Săftoiu, T Perner, P Vilmann, I Gögenur
PURPOSE: Accurate staging of colonic cancer is important for patient stratification. We aimed to correlate the diagnostic accuracy of preoperative computed tomography (CT) with final histopathology as reference standard. METHODS: Data was collected retrospectively on 615 consecutive patients operated for colonic cancer. Evaluation was based upon T-stage. Patients were stratified into high-risk and low-risk groups, based on the extent of tumor invasion beyond the proper muscle layer of more or less than 5 mm...
November 7, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/29113714/laparoscopic-versus-open-colectomy-for-obstructing-right-colon-cancer-a-systematic-review-and-meta-analysis
#7
R Cirocchi, F Cesare Campanile, S Di Saverio, G Popivanov, L Carlini, D Pironi, R Tabola, N Vettoretto
BACKGROUND: Hemicolectomy is the treatment of choice for intestinal obstruction from right colon cancer. This review compares the laparoscopic vs open access in hemicolectomy for patients with right colon cancer. METHODS: A systematic review and meta-analysis of clinical studies published after January 2017 was performed according to the Prisma guidelines. The study has been recorded on the Prospero register (CRD42016044108). RESULTS: Five studies were included for review...
November 4, 2017: Journal of Visceral Surgery
https://www.readbyqxmd.com/read/29104111/clinical-and-biological-significance-of-mir-193a-3p-targeted-kras-in-colorectal-cancer-pathogenesis
#8
Afraa Mamoori, Riajul Wahab, Farhadul Islam, Katherine Lee, Jelena Vider, Cu-Tai Lu, Vinod Gopalan, Alfred King-Yin Lam
This study was to investigate the expression pattern, mechanisms and clinicopathological implications of miR-193a-3p in colorectal cancer. Fresh frozen tissues from 70 matched colorectal adenocarciomas and the adjacent non-neoplastic mucosae were prospectively collected. Two colorectal cancer cell lines (SW480 and SW48) and a non-neoplastic colon cell line (FHC) were also used. The expression levels of miR193a-3p in the cells and tissues were measured by quantitative real-time polymerase chain reaction. The expression of KRAS protein as a predicted downstream target for miR-193a was studied by immunohistochemistry...
November 2, 2017: Human Pathology
https://www.readbyqxmd.com/read/29100272/identification-of-potential-long-non-coding-rna-biomarkers-associated-with-the-progression-of-colon-cancer
#9
Jingwen Li, Weinan Xue, Junli Lv, Peng Han, Yanlong Liu, Binbin Cui
Increasing evidence has suggested that dysregulated lncRNA expression played important roles in the development and progression of human cancers. Although prognostic roles of lncRNAs have been recognized for colon cancer (CC) patients, the search for novel lncRNA biomarkers potentially involved in CC progression is an urgent and still largely unmet medical need. In this study, we evaluated the lncRNA expression changes during the progression of CC by analyzing two cohorts of previously published expression profiles of CC patients and identified hundreds of differentially expressed lncRNAs...
September 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29099643/significant-expression-of-taz-protein-in-colon-cancer-cells-and-it-s-downregulation-by-radiation
#10
Surajit Pathak, Antara Banerjee, Wen-Jian Meng, Suman Kumar Nandy, Madhumala Gopinath, Xiao-Feng Sun
AIM: To demonstrate the radiation responses of TAZ in colon cancer. METHODS: TAZ expression was examined in colon cancer cell lines SW480, KM12C, SW620 and KM12L4a. We used KM12C and KM12L4a for the experiment by using X-rays and UV rays (mW/cm(2)). We used HCT15 cell line to test the expression of TAZ by using an anti-TAZ drug, viz., 9-fluorenone, which is a hippo-yap/taz signaling inhibitor. The experimentation also involved exposing HCT15 cell line, to radiation...
November 3, 2017: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/29093617/detection-of-kras-g12d-in-colorectal-cancer-stool-by-droplet-digital-pcr
#11
Susana Olmedillas-López, Dennis César Lévano-Linares, Carmen Laura Aúz Alexandre, Luz Vega-Clemente, Edurne León Sánchez, Alejandro Villagrasa, Jaime Ruíz-Tovar, Mariano García-Arranz, Damián García-Olmo
AIM: To assess KRAS G12D mutation detection by droplet digital PCR (ddPCR) in stool-derived DNA from colorectal cancer (CRC) patients. METHODS: In this study, tumor tissue and stool samples were collected from 70 patients with stage I-IV CRC diagnosed by preoperative biopsy. KRAS mutational status was determined by pyrosequencing analysis of DNA obtained from formalin-fixed paraffin-embedded (FFPE) tumor tissues. The KRAS G12D mutation was then analyzed by ddPCR in FFPE tumors and stool-derived DNA from patients with this point mutation...
October 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29084052/personalizing-gastric-cancer-screening-with-predictive-modeling-of-disease-progression-biomarkers
#12
Rachel Walker, Jaime Mejia, Jae K Lee, Jose M Pimiento, Mokenge Malafa, Anna R Giuliano, Domenico Coppola, Heiko Enderling
Gastric cancer (GC) remains the third most common cause of cancer-related death worldwide. Infection with Helicobacter pylori is responsible for over 70% of GC incidence; colonization induces chronic inflammation, which can facilitate progression to intestinal metaplasia, dysplasia, and GC (Correa pathway). Although H. pylori eradication is a necessary first step in GC prevention, some patients continue to progress to advanced stage disease if substantial tissue damage has occurred or inflammation persists...
October 27, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/29081776/innate-lymphoid-cells-in-intestinal-inflammation
#13
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/29079411/capecitabine-versus-s-1-as-adjuvant-chemotherapy-for-patients-with-stage-iii-colorectal-cancer-jcog0910-an-open-label-non-inferiority-randomised-phase-3-multicentre-trial
#14
Tetsuya Hamaguchi, Yasuhiro Shimada, Junki Mizusawa, Yusuke Kinugasa, Yukihide Kanemitsu, Masayuki Ohue, Shoichi Fujii, Nobuhiro Takiguchi, Toshimasa Yatsuoka, Yasumasa Takii, Hitoshi Ojima, Hiroyuki Masuko, Yoshiro Kubo, Hideyuki Mishima, Takashi Yamaguchi, Hiroyuki Bando, Toshihiko Sato, Takeshi Kato, Kenichi Nakamura, Haruhiko Fukuda, Yoshihiro Moriya
BACKGROUND: Adjuvant chemotherapy with oral fluoropyrimidine alone after D3/D2 lymph node dissection improves disease-free survival and overall survival in patients with stage III colon cancer. Adjuvant S-1 has been shown to be non-inferior to uracil and tegafur plus leucovorin in terms of disease-free survival. This study aims to confirm the non-inferiority of S-1 compared with capecitabine as adjuvant treatment in patients with stage III colorectal cancer. METHODS: This study was an open-label, non-inferiority, randomised, phase 3, multicentre trial done in 56 Japanese centres to assess the non-inferiority of S-1 to capecitabine as adjuvant chemotherapy...
October 24, 2017: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29078383/quantitative-proteomics-identifies-steap4-as-a-critical-regulator-of-mitochondrial-dysfunction-linking-inflammation-and-colon-cancer
#15
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...
October 23, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29076479/-laparoscopic-and-robot-assisted-surgery-for-locally-advanced-and-generalized-stomach-cancer
#16
A F Chernousov, T V Khorobrykh, F P Vetshev, N M Abdulkhakimov, S V Osminin, A V Dulova
AIM: To analyze the first experience of laparoscopic and robot-assisted surgery for locally advanced and generalized stomach cancer at the Burdenko Clinic of Faculty Surgery. MATERIAL AND METHODS: Since 2011 27 laparoscopic and 2 robot-assisted operations for locally advanced and generalized stomach cancer have been performed in our hospital. Mean age of patients was 62.1±10 years. There were 19 men and 10 women. RESULTS: There were 11 gastrectomies with abdominal esophageal resection and 18 Billroth I subtotal resections...
2017: Khirurgiia
https://www.readbyqxmd.com/read/29070970/polyp-resection-and-removal-procedures-insights-from-the-2017-digestive-disease-week
#17
Carol Burke, Vivek Kaul, Heiko Pohl
Colorectal cancer (CRC) is an important public health issue not only because of its high incidence but also for its high mortality rate. When CRC is diagnosed at an early stage, the 5-year relative survival rate reaches 89.9%. However, only 39% of patients with CRC are diagnosed at this stage. Screening decreases both the incidence of CRC and the number of CRC-related deaths. There are several options available for screening, and colonoscopy is one of the most common methods utilized in the United States. Screening colonoscopy is associated with durable protection from CRC...
September 2017: Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29066700/-a-case-of-laparoscopic-repair-of-internal-hernia-after-laparoscope-assisted-distal-gastrectomy-with-antecolic-roux-en-y-reconstruction
#18
Yukio Maezawa, Haruhiko Cho, Kazuki Kano, Tetsushi Nakajima, Kousuke Ikeda, Takanobu Yamada, Tsutomu Sato, Takashi Ohshima, Yasushi Rino, Munetaka Masuda, Takashi Ogata, Takaki Yoshikawa
A 72-year-old woman had undergone laparoscope-assisted distal gastrectomy with D1 plus lymph node dissection and antecolic Roux-en-Y reconstruction for early gastric cancer. She visited our department outpatient clinic with left upper abdominal pain 1 year and 9 months after the surgery. CT revealed a spiral sign of the superior mesenteric arteriovenous branch. An internal hernia was suspected on hospitalization. Although abdominal symptoms were relieved by conservative treatment, the hernia persisted. Laparoscopic surgery was performed and revealed that almost entire small intestine had been affected due to Petersen's defect...
October 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29065111/identification-of-a-specific-peptide-binding-to-colon-cancer-cells-from-a-phage-displayed-peptide-library
#19
Lidan Hou, Danxi Zhu, Yu Liang, Xiaohui Tian, Lei Li, Ping Wang, Liming Zhu, Xiaoling Weng, Yingying Wang, Yue Li, Tianqi Wu, Jianhua Wang, Xiangjun Meng
BACKGROUND: New molecular probes are essential for early colon cancer diagnosis. A phage-display screening was performed to select novel binding peptides for early colon cancer imaging detection. METHODS: A human colon cancer cell line (COLO320HSR) and a normal human intestinal epithelial cell line (NCM460) were used for subtractive screening with a phage peptide library. The positive peptides were identified, and their binding capacities were confirmed by confocal immunofluorescence both in human colon cancer cells and in biopsy specimens...
October 24, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/29064893/time-of-metastasis-and-outcome-in-colorectal-cancer
#20
Nuh N Rahbari, Prudence R Carr, Lina Jansen, Jenny Chang-Claude, Jürgen Weitz, Michael Hoffmeister, Hermann Brenner
OBJECTIVE: The aim of this study was to evaluate outcomes of metastases at various time intervals after colorectal cancer (CRC) diagnosis. BACKGROUND: Earlier studies have indicated a short time interval between CRC diagnosis and distant metastases to be associated with poor prognosis. The majority of studies assessed outcome from CRC diagnosis or metastasis resection rather than from metastasis diagnosis and might be subject to immortal time bias. METHODS: Patients in the population-based DACHS study were stratified: metastases at/within 1 month (immediate), 2 to 6 months (early), 7 to 12 months (intermediate), and >12 months (late) after CRC diagnosis...
October 23, 2017: Annals of Surgery
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