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https://www.readbyqxmd.com/read/28448072/evaluation-of-ptgs2-expression-pik3ca-mutation-aspirin-use-and-colon-cancer-survival-in-a-population-based-cohort-study
#1
Ronan T Gray, Marie M Cantwell, Helen G Coleman, Maurice B Loughrey, Peter Bankhead, Stephen McQuaid, Roisin F O'Neill, Kenneth Arthur, Victoria Bingham, Claire McGready, Anna T Gavin, Chris R Cardwell, Brian T Johnston, Jacqueline A James, Peter W Hamilton, Manuel Salto-Tellez, Liam J Murray
OBJECTIVES: The association between aspirin use and improved survival after colorectal cancer diagnosis may be more pronounced in tumors that have PIK3CA mutations or high PTGS2 expression. However, the evidence of a difference in association by biomarker status lacks consistency. In this population-based colon cancer cohort study the interaction between these biomarkers, aspirin use, and survival was assessed. METHODS: The cohort consisted of 740 stage II and III colon cancer patients diagnosed between 2004 and 2008...
April 27, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/28442513/histopathological-significance-and-prognostic-impact-of-tumor-budding-in-colorectal-cancer
#2
Anurag Mehta, Malini Goswami, Rupal Sinha
BACKGROUND: Colorectal cancer (CRC) is a heterogeneous disease with complex etiology. New prognostic factors for this group of disease need to be investigated. This study evaluated the histopathological significance and prognostic impact of tumor budding in CRC. DESIGN: A total of 60 treatment naive consecutive patients undergoing surgical resection for CRC during the period of January 2011 to December 2013 were included in the study. Details of each patient related to their demographic and tumor profile were recorded...
March 2017: Annals of Clinical and Laboratory Science
https://www.readbyqxmd.com/read/28441966/maintenance-tegafur-uracil-versus-observation-following-an-adjuvant-oxaliplatin-based-regimen-in-patients-with-stage-iii-colon-cancer-after-radical-resection-study-protocol-for-a-randomized-controlled-trial
#3
Yung-Sung Yeh, Hsiang-Lin Tsai, Ching-Wen Huang, Po-Li Wei, Yung-Chuan Sung, Hsiu-Chih Tang, Jaw-Yuan Wang
BACKGROUND: We conducted a prospective randomized study of an adjuvant oxaliplatin-based regimen plus orally administered tegafur-uracil in patients with stage III colon cancer after radical resection to evaluate the feasibility of this drug combination in cancer clinical outcomes, acute toxicity, disease-free survival (DFS), and overall survival (OS) in Taiwan. METHODS/DESIGN: This is an open-label, randomized, comparative, double-arm, multicenter, phase III study to assess DFS, OS, and safety profiles of the aforementioned drug combination as maintenance therapy for 1 year in patients with stage III colon cancer after radical resection in Taiwan...
April 26, 2017: Trials
https://www.readbyqxmd.com/read/28424071/imatinib-treatment-of-poor-prognosis-mesenchymal-type-primary-colon-cancer-a-proof-of-concept-study-in-the-preoperative-window-period-impacct
#4
I Ubink, H J Bloemendal, S G Elias, M A Brink, M P Schwartz, Y C W Holierhoek, P M Verheijen, A W Boerman, R H J Mathijssen, W W J de Leng, R A de Weger, W M U van Grevenstein, M Koopman, M P Lolkema, O Kranenburg, I H M Borel Rinkes
BACKGROUND: The identification of four Consensus Molecular Subtypes (CMS1-4) of colorectal cancer forms a new paradigm for the design and evaluation of subtype-directed therapeutic strategies. The most aggressive subtype - CMS4 - has the highest chance of disease recurrence. Novel adjuvant therapies for patients with CMS4 tumours are therefore urgently needed. CMS4 tumours are characterized by expression of mesenchymal and stem-like genes. Previous pre-clinical work has shown that targeting Platelet-Derived Growth Factor Receptors (PDGFRs) and the related KIT receptor with imatinib is potentially effective against mesenchymal-type colon cancer...
April 19, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28420554/the-incidence-and-clinical-associated-factors-of-interval-colorectal-cancers-in-southern-taiwan
#5
Cheng-En Tsai, Keng-Liang Wu, Yi-Chun Chiu, Seng-Kee Chuah, Wei-Chen Tai, Ming-Luen Hu, Chih-Ming Liang
BACKGROUND/PURPOSE: Interval colorectal cancer (CRC) is an emerging issue in CRC screening and surveillance. The frequency of interval CRC and its associated factors have not been well studied in Eastern Asia. We aim to clarify the factors associated with interval CRC. METHODS: CRC patients who had negative colonoscopy results 6-36 months prior to cancer diagnosis were defined as cases of interval CRC. Patient characteristics, past history, colon preparation, colonoscopy findings, and pathology were retrospectively evaluated...
April 15, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28418874/is-there-a-prognostic-value-of-tumor-location-among-chinese-patients-with-colorectal-cancer
#6
Fangqi Liu, Cong Li, Huixun Jia, Li Yang, Yuchen Wu, Jiang Zhao, Sanjun Cai, Ji Zhu, Ye Xu
Differences in epidemiology, pathological features, and molecular pathogeneses have been observed according to primary tumor location in colorectal cancer (CRC). However, predicting CRC survival by tumor location remains controversial. Therefore, we compared the pathological characteristics, molecular features, and prognoses of right-side colon cancer (RCC), left-side colon cancer (LCC), and rectal cancer (RECC) among Chinese patients with CRC. We evaluated 4,426 patients with stage I-III CRC between January 2008 and July 2014from Fudan University Shanghai Cancer Center...
March 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28404950/high-expression-of-ptbp1-promote-invasion-of-colorectal-cancer-by-alternative-splicing-of-cortactin
#7
Zhi-Na Wang, Dan Liu, Bin Yin, Wen-Yi Ju, Hui-Zhong Qiu, Yi Xiao, Yuan-Jia Chen, Xiao-Zhong Peng, Chong-Mei Lu
Polypyrimidine tract-binding protein 1 (PTBP1) involving in almost all steps of mRNA regulation including alternative splicing metabolism during tumorigenesis due to its RNA-binding activity. Initially, we found that high expressed PTBP1 and poor prognosis was interrelated in colorectal cancer (CRC) patients with stages II and III CRC, which widely different in prognosis and treatment, by immunohistochemistry. PTBP1 was also upregulated in colon cancer cell lines. In our study, knockdown of PTBP1 by siRNA transfection decreased cell proliferation and invasion in vitro...
March 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28404155/survival-outcomes-following-laparoscopic-versus-open-d3-dissection-for-stage-ii-or-iii-colon-cancer-jcog0404-a-phase-3-randomised-controlled-trial
#8
Seigo Kitano, Masafumi Inomata, Junki Mizusawa, Hiroshi Katayama, Masahiko Watanabe, Seiichiro Yamamoto, Masaaki Ito, Shuji Saito, Shoichi Fujii, Fumio Konishi, Yoshihisa Saida, Hirotoshi Hasegawa, Tomonori Akagi, Kenichi Sugihara, Takashi Yamaguchi, Tadahiko Masaki, Yosuke Fukunaga, Kohei Murata, Masazumi Okajima, Yoshihiro Moriya, Yasuhiro Shimada
BACKGROUND: Although benefits of laparoscopic surgery compared with open surgery have been suggested, the long-term survival of patients undergoing laparoscopic surgery for colon cancer requiring Japanese D3 dissection remains unclear. We did a randomised controlled trial to establish non-inferiority of laparoscopic surgery to open surgery. METHODS: We did an open-label, multi-institutional, randomised, two-arm phase 3 trial in 30 hospitals in Japan. Patients aged 20-75 years who had histologically proven colon cancer; tumours located in the caecum or ascending, sigmoid, or rectosigmoid colon; T3 or deeper lesions without involvement of other organs, node stages N0-2, and metastasis stage M0; and tumour size of 8 cm or smaller were included...
April 2017: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28401701/presence-of-bone-marrow-micro-metastases-in-stage-i-iii-colon-cancer-patients-is-associated-with-worse-disease-free-and-overall-survival
#9
Carsten T Viehl, Benjamin Weixler, Ulrich Guller, Salome Dell-Kuster, Rachel Rosenthal, Michaela Ramser, Vanessa Banz, Igor Langer, Luigi Terracciano, Guido Sauter, Daniel Oertli, Markus Zuber
The prognostic significance of bone marrow micro-metastases (BMM) in colon cancer patients remains unclear. We conducted a prospective cohort study with long-term follow-up to evaluate the relevance of BMM as a prognostic factor for disease free (DFS) and overall survival (OS) in stage I-III colon cancer patients. In this prospective multicenter cohort study 144 stage I-III colon cancer patients underwent bone marrow aspiration from both iliac crests prior to open oncologic resection. The bone marrow aspirates were stained with the pancytokeratin antibody A45-B/B3 and analyzed for the presence of epithelial tumor cells...
April 12, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28399381/adjuvant-chemotherapy-for-stage-ii-colon-cancer-a-clinical-dilemma
#10
Joseph Kannarkatt, Joe Joseph, Peter C Kurniali, Anas Al-Janadi, Borys Hrinczenko
The decision to treat a patient with stage II colon cancer with adjuvant chemotherapy can be challenging. Although the benefit of treatment is clear in most patients with stage III disease, the decision to provide chemotherapy after surgical resection in stage II disease must be made on an individual basis. Several trials have demonstrated the small but absolute benefits of receiving adjuvant chemotherapy for stage II colon cancer for disease-free survival and overall survival. In an attempt to better understand the role of chemotherapy, several studies were performed that identified high-risk characteristics that can be used prognostically and predictively to aid in the clinical decision making process...
April 2017: Journal of Oncology Practice
https://www.readbyqxmd.com/read/28390415/sidedness-is-prognostic-in-locoregional-colon-cancer-an-analysis-of-9509-australian-patients
#11
Daniel Brungs, Morteza Aghmesheh, Paul de Souza, Weng Ng, Wei Chua, Martin Carolan, Philip Clingan, Emma Healey, June Rose, Tameika Tubaro, Marie Ranson
BACKGROUND/AIM: Right sided colon cancer (RsCC) is proposed to be a distinct disease entity to left sided colon cancer (LsCC). We seek to confirm primary tumour location as an independent prognostic factor in locoregional colorectal cancer. METHODS: All patients with stage I - III primary adenocarcinoma of colon were identified from the New South Wales (NSW) clinical cancer registry (2006-2013). Primary tumour location (RsCC vs LsCC) survival analyses were conducted using the Kaplan-Meier method, and adjusted hazard ratios for 5-year all-cause mortality (OS) and 5-year cancer specific mortality (CSS) were obtained using Cox proportional hazards regression...
April 8, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28389779/poor-prognosis-of-young-patients-with-colorectal-cancer-a-retrospective-study
#12
Liying Zhao, Feng Bao, Jun Yan, Hao Liu, Tingting Li, Hao Chen, Guoxin Li
PURPOSE: The present study aimed to explore the survival outcomes of patients with colorectal cancer (CRC) aged 35 years and younger. METHODS: This retrospective cohort study included a total of 995 patients with CRC treated between January 2003 and September 2011. The patients were assorted into the young (aged 18-35 years) and older (aged 36-75 years) groups. The clinical characteristics and survival outcomes of the patients in the young group were compared with those of the patients in the older group for evaluation...
April 7, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28387060/laparoscopic-versus-open-resection-for-transverse-and-descending-colon-cancer-short-term-and-long-term-outcomes-of-a-multicenter-retrospective-study-of-1830-patients
#13
Shigeki Yamaguchi, Jo Tashiro, Ryuichiro Araki, Junji Okuda, Tsunekazu Hanai, Koki Otsuka, Shuji Saito, Masahiko Watanabe, Kenichi Sugihara
INTRODUCTION: Previous randomized controlled trials demonstrated similar oncological outcomes between laparoscopic and open colectomies, except for cases involving transverse colon and splenic flexure colon cancer. The objective of this study was to confirm the oncological safety and advantages of the short-term results of laparoscopic surgery for transverse and descending colon cancer in comparison with open surgery. METHODS: The study data were retrospectively collected from the databases of 45 hospitals...
April 7, 2017: Asian Journal of Endoscopic Surgery
https://www.readbyqxmd.com/read/28378527/the-prognostic-value-of-simultaneous-tumor-and-serum-ras-raf-mutations-in-localized-colon-cancer
#14
Caroline Emilie B Thomsen, Ane Lindegaard Appelt, Rikke Fredslund Andersen, Jan Lindebjerg, Lars Henrik Jensen, Anders Jakobsen
The impact of RAS/RAF mutations in localized colon cancer needs clarification. Based on analysis of tumor-specific DNA, this study aimed at elucidating the prognostic influence of mutational status in tumor and serum using an extended panel of mutations. The study retrospectively included 294 patients with curatively resected stage I-III adenocarcinoma of the colon. Mutations in tumor and serum were determined at time of surgery. Analyses were performed with droplet digital PCR technology. Hazard ratio (HR) for the association between mutational status and survival was estimated in multivariate analysis taking known prognostic factors into account...
April 4, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28377225/differential-expression-of-st6gal1-in-the-tumor-progression-of-colorectal-cancer
#15
Sen Zhang, Jishun Lu, Zhijue Xu, Xia Zou, Xue Sun, Yingjiao Xu, Aidong Shan, Jiaoyang Lu, Xialin Yan, Yalu Cui, Wei Yan, Yuguo Du, Jianguo Gu, Minhua Zheng, Bo Feng, Yan Zhang
Elevated expression of β-galactoside α2,6-sialyltranferase 1 (ST6GAL1) has been observed in colorectal cancer (CRC) and demonstrated to be important for its tumorigenesis. Here, we found that ST6GAL1 expression was significantly higher in non-metastatic tumors (stage I and II) than that in metastatic tumors (stage III and IV) using 62 pair-matched tumor/normal tissues. To elucidate the molecular mechanisms of how ST6GAL1 affected the CRC progression, we performed a global identification of the substrates of ST6GAL1 in the colon adenocarcinoma cell line SW480...
May 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28373475/cancer-stem-cell-gene-variants-in-cd44-predict-outcome-in-stage-ii-and-stage-iii-colon-cancer-patients
#16
Michael Stotz, Sereina A Herzog, Martin Pichler, Maria Smolle, Jakob Riedl, Christopher Rossmann, Angelika Bezan, Herbert Stöger, Wilfried Renner, Andrea Berghold, Armin Gerger
BACKGROUND/AIM: Growing evidence suggests that human cancers are stem cell diseases and recent data support the existence of cancer stem cells (CSCs) in a variety of malignancies, including colon cancer. These CSCs were shown to be capable of initiating tumor development and progression. Several studies have suggested CD133, CD26 and CD44 as markers of tumor-initiating cells of colon cancer. The purpose of the present study was to assess the impact of single-nucleotide polymorphisms (SNPs) in stem cell-related genes on clinical outcome in a large cohort of colon cancer patients with clinical stage II and III...
April 2017: Anticancer Research
https://www.readbyqxmd.com/read/28365393/peripheral-neutrophil-to-lymphocyte-ratio-improves-prognostication-in-colon-cancer
#17
Shahrooz Rashtak, Xiaoyang Ruan, Brooke R Druliner, Hongfang Liu, Terry Therneau, Mohamad Mouchli, Lisa A Boardman
BACKGROUND: We studied the role of peripheral neutrophil to lymphocyte ratio (NLR) on survival outcomes in colon and rectal cancer to determine if its inclusion improved prognostication within existing staging systems. PATIENTS AND METHODS: Disease-free (DFS) and overall survival (OS) hazard ratios (HRs) of pretreatment NLR were calculated for 2536 patients with stage I to III colon or rectal cancer and adjusted for age, positive/total number of nodes, T stage, and grade...
January 25, 2017: Clinical Colorectal Cancer
https://www.readbyqxmd.com/read/28346663/management-of-stage-iii-colon-cancer-in-the-elderly-practice-patterns-and-outcomes-in-the-general-population
#18
Shaila J Merchant, Sulaiman Nanji, Kelly Brennan, Safiya Karim, Sunil V Patel, James J Biagi, Christopher M Booth
BACKGROUND: Clinical trials have established surgical resection and adjuvant chemotherapy (ACT) as the standard management for stage III colon cancer; however, the extent to which these results apply to elderly patients in routine practice is unclear. This article describes the management and outcomes of elderly patients with stage III colon cancer. METHODS: All cases of surgically resected colon cancer from 2002 to 2008 were identified with the population-based Ontario Cancer Registry...
March 27, 2017: Cancer
https://www.readbyqxmd.com/read/28341242/adjuvant-chemotherapy-for-stage-ii-and-iii-colon-cancer-following-complete-resection-a-cancer-care-ontario-systematic-review
#19
B M Meyers, R Cosby, F Quereshy, D Jonker
The objective of this systematic review was to provide current evidence regarding the use of adjuvant systemic chemotherapy for stage II and III colon cancer following curative intent surgery. MEDLINE and EMBASE databases and proceedings of American Society for Clinical Oncology and European Society of Medical Oncology/European Cancer Congress were searched through to August 2015. Systematic reviews (with or without meta-analyses) and randomised controlled trials were included. Patients with completely resected stage III colon cancer have an overall survival benefit from adjuvant chemotherapy...
March 21, 2017: Clinical Oncology: a Journal of the Royal College of Radiologists
https://www.readbyqxmd.com/read/28339306/descriptive-characteristics-of-colon-and-rectal-cancer-recurrence-in-a-danish-population-based-study
#20
Ashley C Holmes, Anders H Riis, Rune Erichsen, Veronika Fedirko, Eva Bjerre Ostenfeld, Mogens Vyberg, Ole Thorlacius-Ussing, Timothy L Lash
BACKGROUND: Recurrence is a common outcome among patients that have undergone an intended curative resection for colorectal cancer. However, data on factors that influence colorectal cancer recurrence are sparse. We report descriptive characteristics of both colon and rectal cancer recurrence in an unselected population. MATERIAL AND METHODS: We identified 21,152 patients with colorectal cancer diagnosed between May 2001 and December 2011 and registered with the Danish Colorectal Cancer Group...
March 24, 2017: Acta Oncologica
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