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https://www.readbyqxmd.com/read/28108736/long-non-coding-rnas-a-rising-biotarget-in-colorectal-cancer
#1
Jian Luo, Jian Qu, Dong-Kai Wu, Zhi-Li Lu, Yue-Sheng Sun, Qiang Qu
Colorectal cancer (CRC) is a common gastrointestinal cancer, with a high incidence and high mortality. Long non-coding RNAs (lncRNAs) are involved in the development, invasion and metastasis, early diagnosis, prognosis, the chemoresistance and radioresistance of CRC through interference with mRNA activity, directly combining with proteins to regulate their activity or alter their localization, influencing downstream gene expression by inhibiting RNA polymerase and regulating gene expression as competing endogenous RNAs...
January 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28107095/chibby1-knockdown-promotes-mesenchymal-to-epithelial-transition-like-changes
#2
Victoria Fischer, Michael Wong, Feng-Qian Li, Ken-Ichi Takemaru
Chibby1 (Cby1) was originally isolated as a binding partner for β-catenin, a dual function protein in cell-cell adhesion and in canonical Wnt signaling. The canonical Wnt/β-catenin pathway is dysregulated in various diseases including cancer, most notably of the gastrointestinal origin. To investigate the role of Cby1 in colorectal tumorigenesis, we generated stable Cby1-knockdown (KD) SW480 colon cancer cells. Unexpectedly, we found that Cby1 KD induces mesenchymal-to-epithelial transition (MET)-like changes in SW480 as well as in HEK293 cells...
January 20, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28106826/colorectal-carcinoma-a-general-overview-and-future-perspectives-in-colorectal-cancer
#3
REVIEW
Inés Mármol, Cristina Sánchez-de-Diego, Alberto Pradilla Dieste, Elena Cerrada, María Jesús Rodriguez Yoldi
Colorectal cancer (CRC) is the third most common cancer and the fourth most common cause of cancer-related death. Most cases of CRC are detected in Western countries, with its incidence increasing year by year. The probability of suffering from colorectal cancer is about 4%-5% and the risk for developing CRC is associated with personal features or habits such as age, chronic disease history and lifestyle. In this context, the gut microbiota has a relevant role, and dysbiosis situations can induce colonic carcinogenesis through a chronic inflammation mechanism...
January 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28106227/can-ngal-be-employed-as-prognostic-and-diagnostic-biomarker-in-human-cancers-a-systematic-review-of-current-evidence
#4
Laura Roli, Valentina Pecoraro, Tommaso Trenti
BACKGROUND: Some studies have reported differentially altered neutrophil gelatinase-associated lipocalin (NGAL) levels in several malignancies. We evaluated NGAL measured in plasma or urine as both prognostic and diagnostic marker for different types of human tumors. METHODS: We performed systematic electronic searches in Medline, Embase and CRDTAS. Studies were included if they evaluated NGAL as a prognostic or diagnostic marker for human cancers. The selection of the studies, screening of the full texts and data extraction were conducted independently by 2 authors...
January 16, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28105966/a-novel-approach-for-pathway-analysis-of-gwas-data-highlights-role-of-bmp-signaling-and-muscle-cell-differentiation-in-colorectal-cancer-susceptibility
#5
Aniket Mishra, Stuart MacGregor
Genome-wide association studies (GWAS) have revolutionized the field of gene mapping. As the GWAS field matures, it is becoming clear that for many complex traits, a proportion of the missing heritability is attributable to common variants of individually small effect. Detecting these small effects individually can be difficult, and statistical power would be increased if relevant variants could be grouped together for testing. Here, we propose a VEGAS2Pathway approach that aggregates association strength of individual markers into pre-specified biological pathways...
February 2017: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
https://www.readbyqxmd.com/read/28103507/circular-banp-an-upregulated-circular-rna-that-modulates-cell-proliferation-in-colorectal-cancer
#6
Mingchen Zhu, Yijun Xu, Yun Chen, Feng Yan
Circular RNAs (circRNAs) are recently identified as widespread and diverse endogenous noncoding RNAs that may harbor vital functions in human and animals. However, the role of circRNAs in the process of tumorigenesis and development of colorectal cancer (CRC) remains vague. Here we characterized the circRNA expression profile from three paired CRC cancerous and adjacent normal tissues by human circRNA array, and identified 136 significantly overexpressed circRNAs and 243 downregulated circRNAs in CRC cancerous tissues (>2-fold changes)...
January 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28102859/diagnostic-accuracy-of-methylated-sept9-for-blood-based-colorectal-cancer-detection-a-systematic-review-and-meta-analysis
#7
Jiayun Nian, Xu Sun, SuYang Ming, Chen Yan, Yunfei Ma, Ying Feng, Lin Yang, Mingwei Yu, Ganlin Zhang, Xiaomin Wang
OBJECTIVES: More convenient and effective blood-based methods are believed to increase colorectal cancer (CRC) detection adoption. The effectiveness of methylated SPET9 for CRC detection has been reviewed in the newly published recommendation statement by US Preventive Services Task Force (USPSTF), while detailed instructions were not provided, which may be a result of insufficient evidence. Therefore, more evidence is needed to assist practitioners to thoroughly understand the utilization of this special maker...
January 19, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/28101224/impact-of-chromosome-17q-deletion-in-the-primary-lesion-of-colorectal-cancer-on-liver-metastasis
#8
Masaya Kawai, Hiromitsu Komiyama, Masaki Hosoya, Haruna Okubo, Tomoaki Fujii, Norihiko Yokoyama, Chiyo Sato, Takae Ueyama, Atsushi Okuzawa, Michitoshi Goto, Yutaka Kojima, Makoto Takahashi, Kiichi Sugimoto, Shun Ishiyama, Shinya Munakata, Dai Ogura, Shin-Ichiro Niwa, Yuichi Tomiki, Takumi Ochiai, Kazuhiro Sakamoto
Colorectal cancer is a prevalent malignancy worldwide, and investigations are required to elucidate the underlying carcinogenic mechanisms. Amongst these mechanisms, de novo carcinogenesis and the adenoma to carcinoma sequence, are the most understood. Metastasis of colorectal cancer to the liver often results in fatality, therefore, it is important for any associated risk factors to be identified. Regarding the treatment of the disease, it is important to manage not only the primary colorectal tumor, but also the liver metastases...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28100902/prognostic-role-of-neutrophil-to-lymphocyte-ratio-in-locally-advanced-rectal-cancer-treated-with-neoadjuvant-chemoradiotherapy
#9
Jinwen Shen, Yuan Zhu, Wei Wu, Lingnan Zhang, Haixing Ju, Yongtian Fan, Yuping Zhu, Jialin Luo, Peng Liu, Ning Zhou, Ke Lu, Na Zhang, Dechuan Li, Luying Liu
BACKGROUND Increasing evidence suggests that cancer-associated inflammation is associated with poorer outcomes. The neutrophil-to-lymphocyte ratio (NLR), considered as a systemic inflammation marker, is thought to predict prognoses in colorectal cancer. In this study, we explored the association between the NLR and prognoses following neoadjuvant chemoradiotherapy (CRT) for locally advanced rectal cancer (LARC). MATERIAL AND METHODS From February 2002 to December 2012, a group of 202 patients diagnosed with LARC and receiving neoadjuvant CRT followed by radical surgery was included in our retrospective study...
January 19, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28100713/ahrr-cg05575921-hypomethylation-marks-smoking-behaviour-morbidity-and-mortality
#10
Stig E Bojesen, Nicholas Timpson, Caroline Relton, George Davey Smith, Børge G Nordestgaard
RATIONALE AND OBJECTIVES: Self-reported smoking underestimates disease risk. Smoking affects DNA methylation, in particular the cg05575921 site in the aryl hydrocarbon receptor repressor (AHRR) gene. We tested the hypothesis that AHRR cg05575921 hypomethylation is associated with risk of smoking-related morbidity and mortality. METHODS: From the Copenhagen City Heart Study representing the Danish general population, we studied 9234 individuals. Using bisulphite treated leucocyte DNA, AHRR (cg05575921) methylation was measured...
January 18, 2017: Thorax
https://www.readbyqxmd.com/read/28095858/mir-4775-promotes-colorectal-cancer-invasion-and-metastasis-via-the-smad7-tgf%C3%AE-mediated-epithelial-to-mesenchymal-transition
#11
Senlin Zhao, Hongcheng Sun, Weiliang Jiang, Yushuai Mi, Dongyuan Zhang, Yugang Wen, Dantong Cheng, Huamei Tang, Shaohan Wu, Yang Yu, Xisheng Liu, Weiyingqi Cui, Meng Zhang, Xiaofeng Sun, Zongguang Zhou, Zhihai Peng, Dongwang Yan
BACKGROUND: Despite advancements in the diagnosis and treatment of colorectal cancer (CRC), many patients die because of tumor metastasis or recurrence. Therefore, identifying new prognostic markers and elucidating the mechanisms of CRC metastasis and recurrence will help to improve the prognosis of the disease. As dysregulation of microRNAs is strongly related to cancer progression, the aim of this study was to identify the role of miR-4775 in the prognosis of CRC patients and the underling mechanisms involved in CRC progression...
January 17, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28088787/hint2-downregulation-promotes-colorectal-carcinoma-migration-and-metastasis
#12
Weihua Li, Shaoxin Cai, Le Wang, Changshun Yang, Biaohuan Zhou, Huan Wang
Histidine triad nucleotide-binding 2 (HINT2), a member of the histidine triad proteins family, sensitizes cells to apoptosis in hepatocellular carcinoma. Here, we showed that HINT2 expression is lower in primary colorectal cancer (CRC) and metastasis tissues than in normal colorectal tissues, and that HINT2 abundance is inversely correlated with CRC tumor stage. Treating CRC cells with 5-aza-2'-deoxycytidine, a demethylating agent, upregulated HINT2, suggesting HINT2 downregulation is caused by methylation of the gene promoter...
January 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28088229/clinicopathologic-significance-of-trap1-expression-in-colorectal-cancer-a-large-scale-study-of-human-colorectal-adenocarcinoma-tissues
#13
Min Gyoung Pak, Hyong Jong Koh, Mee Sook Roh
BACKGROUND: Colorectal cancer is the major cause of cancer mortality, despite development of therapeutic strategies. The novel marker tumor necrosis factor receptor-associated protein 1 (TRAP1) is a mitochondrial heat shock protein that has been related to drug resistance and protection from apoptosis in colorectal cancer. This study aims to delineate the clinicopathologic significance of TRAP1 expression in colorectal cancer. METHODS: Seven-hundred and fourteen FFPE tissues were collected from colorectal cancer patients who underwent surgery from February 2002 to July 2011 at Dong-A University Medical Center, Busan, South Korea...
January 14, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28086834/detection-of-circulating-tumor-cells-with-ck20-rt-pcr-is-an-independent-negative-prognostic-marker-in-colon-cancer-patients-a-prospective-study
#14
Sebastian Hinz, Alexander Hendricks, Amke Wittig, Clemens Schafmayer, Jürgen Tepel, Holger Kalthoff, Thomas Becker, Christian Röder
BACKGROUND: Detection of circulating (CTC) or disseminated tumor cells (DTC) has been associated with negative prognosis and outcome in patients with colorectal cancer, though testing for these cells is not yet part of clinical routine. There are several different methodological approaches to detect tumor cells but standardized detection assays are not implemented so far. METHODS: In this prospective monocentric study 299 patients with colon cancer were included...
January 13, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28081548/serum-ldh-predicts-benefit-from-bevacizumab-beyond-progression-in-metastatic-colorectal-cancer
#15
Federica Marmorino, Lisa Salvatore, Cecilia Barbara, Giacomo Allegrini, Lorenzo Antonuzzo, Gianluca Masi, Fotios Loupakis, Beatrice Borelli, Silvana Chiara, Maria Chiara Banzi, Emanuela Miraglio, Domenico Amoroso, Francesco Dargenio, Andrea Bonetti, Angelo Martignetti, Myriam Paris, Daniela Tomcikova, Luca Boni, Alfredo Falcone, Chiara Cremolini
BACKGROUND: Different antiangiogenics are currently indicated in the second-line treatment of metastatic colorectal cancer (mCRC), following a first-line bevacizumab-containing treatment. The magnitude of benefit is limited, but no predictors of benefit have been identified. METHODS: A total of 184 mCRC patients progressing to a first-line bevacizumab-containing treatment were randomised in the BEBYP study to continue or not the antiangiogenic in combination with a second-line chemotherapy...
January 12, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28078118/less-than-12-lymph-nodes-in-the-surgical-specimen-after-neoadjuvant-chemo-radiotherapy-an-indicator-of-tumor-regression-in-locally-advanced-rectal-cancer
#16
Jaiprakash Gurawalia, Kapil Dev, Sandeep P Nayak, Vishnu Kurpad, Arun Pandey
BACKGROUND: The number of lymph node retrieved in the surgical specimen is important for tumor staging and has paramount impact on prognosis in colorectal cancer and imitates the adequacy of lymph node surgical clearance. The paucity of lymph node yields in patients undergoing resection after preoperative chemo radiotherapy (CRT) in rectal cancer has seen. Lower total number of lymph nodes in the total mesoractal excision (TME) specimen after CRT, could a marker of better tumor response...
December 2016: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28077117/topoisomerase-i-copy-number-alterations-as-biomarker-for-irinotecan-efficacy-in-metastatic-colorectal-cancer
#17
Jesper Andreas Palshof, Estrid Vilma Solyom Høgdall, Tim Svenstrup Poulsen, Dorte Linnemann, Benny Vittrup Jensen, Per Pfeiffer, Line Schmidt Tarpgaard, Nils Brünner, Jan Stenvang, Mette Yilmaz, Dorte Lisbet Nielsen
BACKGROUND: No biomarker exists to guide the optimal choice of chemotherapy for patients with metastatic colorectal cancer. We examined the copy numbers (CN) of topoisomerase I (TOP1) as well as the ratios of TOP1/CEN-20 and TOP1/CEN-2 as biomarkers for irinotecan efficacy in patients with metastatic colorectal cancer. METHODS: From a national cohort, we identified 163 patients treated every third week with irinotecan 350 mg/m(2) as second-line therapy. Among these 108 were eligible for analyses and thus entered the study...
January 11, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28076332/lysosomal-acid-phosphatase-2-is-an-unfavorable-prognostic-factor-but-is-associated-with-better-survival-in-stage-ii-colorectal-cancer-patients-receiving-chemotherapy
#18
Yu-Chieh Lee, Chia-Yu Su, Yuan-Feng Lin, Chun-Mao Lin, Chih-Yeu Fang, Yen-Kuang Lin, Michael Hsiao, Chi-Long Chen
Colorectal cancer (CRC) is one of the leading cancers worldwide. Surgery is the main therapeutic modality for stage II CRC. However, the implementation of adjuvant chemotherapy remains controversial and is not universally applied so far. In this study, we found that the protein expression of lysosomal acid phosphatase 2 (ACP2) was increased in CRC and that stage II CRC patients with high ACP2 expression showed a poorer outcome than those with low ACP2 expression (p = 0.004). To investigate this discrepancy, we analyzed the relation between ACP2 expression and several clinical cofactors...
January 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28076324/poly-c-binding-protein-1-mediates-drug-resistance-in-colorectal-cancer
#19
Jiani Guo, Changli Zhu, Kangqun Yang, Jin Li, Nan Du, Mingzhu Zong, Jianwei Zhou, Jingdong He
Oxaliplatin (L-OHP) is standard treatment for colorectal cancer. However, resistance to L-OHP often leads to treatment failure or cancer relapse. Understanding of the mechanism underlying L-OHP resistance is important to overcome the resistance and improve colorectal cancer treatment. This study aimed to identify new proteins that mediates L-OHP resistance in colorectal cancer and elucidate their mode of function. HT-29 cells were exposed to gradually increased concentration of L-OHP to select L-OHP resistant HT-29/L-OHP cell line...
January 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28072391/braf-v600e-cooperates-with-cdx2-inactivation-to-promote-serrated-colorectal-tumorigenesis
#20
Naoya Sakamoto, Ying Feng, Carmine Stolfi, Yuki Kurosu, Maranne Green, Jeffry Lin, Megan Green, Kazuhiro Sentani, Wataru Yasui, Martin McMahon, Karin M Hardiman, Jason R Spence, Nobukatsu Horita, Joel K Greenson, Rork Kuick, Kathy R Cho, Eric R Fearon
While 20-30% of colorectal cancers (CRCs) may arise from precursors with serrated glands, only 8-10% of CRCs manifest serrated morphology at diagnosis. Markers for distinguishing CRCs arising from 'serrated' versus 'conventional adenoma' precursors are lacking. We studied 36 human serrated CRCs and found CDX2 loss or BRAF mutations in ~60% of cases and often together (p= .04). CDX2(Null)/BRAF(V600E) expression in adult mouse intestinal epithelium led to serrated morphology tumors (including carcinomas) and BRAF(V600E) potently interacted with CDX2 silencing to alter gene expression...
January 10, 2017: ELife
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