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https://www.readbyqxmd.com/read/28103261/significance-of-serum-total-oxidant-antioxidant-status-in-patients-with-colorectal-cancer
#1
Rong Wu, Jiafu Feng, Yuwei Yang, Chunmei Dai, Anyang Lu, Jie Li, Yao Liao, Miao Xiang, Qingmei Huang, Dong Wang, Xiao-Bo Du
Oxidative stress is involved in a variety of diseases. Prospective studies investigating the relationship between oxidative stress biomarkers and the status and development of colorectal cancer (CRC) are scarce; previous studies have failed to establish a relationship between the serum total oxidant/antioxidant status and CRC. Therefore, we compared the total serum oxidant/antioxidant levels of CRC patients and healthy subjects, and analyzed their clinical significance in the CRC. Fasting blood samples from 132 CRC patients and 64 healthy subjects were collected...
2017: PloS One
https://www.readbyqxmd.com/read/28102343/individualised-multiplexed-circulating-tumour-dna-assays-for-monitoring-of-tumour-presence-in-patients-after-colorectal-cancer-surgery
#2
Sarah B Ng, Clarinda Chua, Matthew Ng, Anna Gan, Polly Sy Poon, Melissa Teo, Cherylin Fu, Wei Qiang Leow, Kiat Hon Lim, Alexander Chung, Si-Lin Koo, Su Pin Choo, Danliang Ho, Steve Rozen, Patrick Tan, Mark Wong, William F Burkholder, Iain Beehuat Tan
Circulating tumour DNA (ctDNA) has the potential to be a specific biomarker for the monitoring of tumours in patients with colorectal cancer (CRC). Here, our aim was to develop a personalised surveillance strategy to monitor the clinical course of CRC after surgery. We developed patient-specific ctDNA assays based on multiplexed detection of somatic mutations identified from patient primary tumours, and applied them to detect ctDNA in 44 CRC patients, analysing a total of 260 plasma samples. We found that ctDNA detection correlated with clinical events - it is detectable in pre-operative but not post-operative plasma, and also in patients with recurrent CRC...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28101572/insulin-induction-instigates-cell-proliferation-and-metastasis-in-human-colorectal-cancer-cells
#3
Chi-Cheng Lu, Pei-Yi Chu, Shih-Min Hsia, Chi-Hao Wu, Yu-Tang Tung, Gow-Chin Yen
The progression of colorectal cancer has been reported to have a positive correlation with the combination of hyperglycemia and hyperinsulinemia in diabetic patients, leading to a lower survival rate. However, how insulin acts on colorectal cancer remains not well understood. The purpose of this study was to explore the effect of insulin on colon cancer cell proliferation and its underlying molecular signaling as well as the impact of insulin-induced in vitro metastasis. Our results showed that insulin markedly promoted cell proliferation, migration and anchorage-independent growth in human colon cancer HCT-116 cells...
February 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28101234/dysregulation-of-malat1-and-mir-619-5p-as-a-prognostic-indicator-in-advanced-colorectal-carcinoma
#4
Gu Qiu, Xiu-Bing Zhang, Shu-Qing Zhang, Pei-Long Liu, Wei Wu, Jin-Ye Zhang, Shi-Rong Dai
The present study aimed to detect the expression of metastasis associated lung adenocarcinoma transcript 1 (MALAT1) and microRNA (miR)-619-5p in colorectal carcinoma (CRC), and to evaluate the significance of MALAT1 and miR-619-5p expression in the clinical diagnosis and prognosis of CRC. Quantitative polymerase chain reaction was used to detect MALAT1 and miR-619-5p expression in 120 colorectal carcinoma and 120 adjacent normal tissue samples. The expression levels of MALAT1 and miR-619-5p were significantly different between colorectal carcinoma and adjacent normal tissues (P<0...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28101227/downregulation-of-mir-23b-in-plasma-is-associated-with-poor-prognosis-in-patients-with-colorectal-cancer
#5
Chang-Hua Kou, Tian Zhou, Xi-Lin Han, Hui-Jie Zhuang, Hai-Xin Qian
MicroRNAs (miRNAs) are short, non-coding RNA molecules that act as regulators of gene expression. Circulating blood miRNAs have potential as cancer biomarkers. The main objective of the present study was to assess the effect of miRNA-23b (miR-23b) expression in plasma on the diagnosis and prognosis of colorectal cancer (CRC). Reverse transcription-quantitative polymerase chain reaction (PCR) was used to measure miR-23b expression levels, and methylation-specific PCR was used to test the promoter methylation status...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28101224/impact-of-chromosome-17q-deletion-in-the-primary-lesion-of-colorectal-cancer-on-liver-metastasis
#6
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/28100947/solitary-splenic-metastasis-from-a-mucinous-adenocarcinoma-of-the-cecum-a-case-report
#7
Maximiliano Lo Tartaro, Miguel A Cardona, Maria S Serrano, Mario Cantin, Nicolas Ernesto Ottone
Reports of cases of splenic metastasis are very rare, even more so when they are derived from a mucinous adenocarcinoma of the cecum. The most common presentation of a solitary splenic metastasis is from lung primary tumors, endometrium, ovary, cervix, stomach, colon, breast, bladder, and skin. We report the case of an 84-year-old woman with a solitary splenic metastasis from a mucinous adenocarcinoma of the cecum. Until this work, only 18 cases of solitary splenic metastases from colorectal carcinomas have been described in the literature...
December 2016: Indian Journal of Surgery
https://www.readbyqxmd.com/read/28100854/the-role-of-cancer-stem-cells-in-pathogenesis-of-colorectal-cancer
#8
Magdalena Szaryńska, Agata Olejniczak, Zbigniew Kmieć
Colorectal cancer (CRC) is the third most commonly diagnosed cancer, accounting for about 10% of total adult malignancies worldwide. The majority of CRC cases are diagnosed at the late stage; thus the investigation of the pathogenesis of early-stage disease and its detection could prevent formation of metastasis, a leading cause of death. This review highlights the recent progress in the understanding of the development of cancer stem cells (CSCs) in the colon epithelium and mechanisms of their proliferation...
December 31, 2016: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28099437/overexpression-of-rad51-predicts-poor-prognosis-in-colorectal-cancer-our-experience-with-54-patients
#9
Yan Li, Wei-Ya Wang, Jiang-Hong Xiao, Feng Xu, Dian-Ying Liao, Li Xie, Jin Wang, Feng Luo
BACKGROUND: Aberrant Rad51 expression is implicated in the progression of human malignancies. However, the role of Rad51 in colorectal cancer (CRC) remains undefined. This study aimed to establish a relationship between Rad51 and clinicopathologic features of CRC. METHODS: We retrospectively examined the paraffin-embedded tissue samples obtained from 54 patients with CRC who had received surgical therapies at our institution during 2006-2008. Rad51 expression in adenocarcinoma, paracancerous tissue, and normal colonic tissue was determined by immunohistochemistry...
2017: PloS One
https://www.readbyqxmd.com/read/28098873/trim37-promotes-epithelial%C3%A2-mesenchymal-transition-in-colorectal-cancer
#10
Cheng-En Hu, Jun Gan
There is substantial research on the oncogenic role of tripartite motif containing 37 (TRIM37); however, its importance in colorectal cancer (CRC) remains to be elucidated. The present study used reverse transcription‑quantitative polymerase chain reaction, immunohistochemistry and western blotting to detect the expression level of TRIM37 in CRC. The importance of TRIM37 in cell proliferation, invasion and metastasis of CRC were investigated through overexpressing or knocking‑down of TRIM37 in CRC cell lines, to observe its function...
January 16, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28097239/metastasis-regulation-by-ppard-expression-in-cancer-cells
#11
Xiangsheng Zuo, Weiguo Xu, Min Xu, Rui Tian, Micheline J Moussalli, Fei Mao, Xiaofeng Zheng, Jing Wang, Jeffrey S Morris, Mihai Gagea, Cathy Eng, Scott Kopetz, Dipen M Maru, Asif Rashid, Russell Broaddus, Daoyan Wei, Mien-Chie Hung, Anil K Sood, Imad Shureiqi
Peroxisome proliferator-activated receptor-δ (PPARD) is upregulated in many major human cancers, but the role that its expression in cancer cells has in metastasis remains poorly understood. Here, we show that specific PPARD downregulation or genetic deletion of PPARD in cancer cells significantly repressed metastasis in various cancer models in vivo. Mechanistically, PPARD promoted angiogenesis via interleukin 8 in vivo and in vitro. Analysis of transcriptome profiling of HCT116 colon cancer cells with or without genetic deletion of PPARD and gene expression patterns in The Cancer Genome Atlas colorectal adenocarcinoma database identified novel pro-metastatic genes (GJA1, VIM, SPARC, STC1, SNCG) as PPARD targets...
January 12, 2017: JCI Insight
https://www.readbyqxmd.com/read/28096324/totally-laparoscopic-liver-resection-for-colorectal-metastasis-located-in-segment-7-in-a-patient-with-situs-inversus-totalis
#12
Antonio Giuliani, Paolo Bianco, Germano Guerra, Aldo Rocca, Fulvio Calise
Situs inversus totalis (SIT) is a congenital condition consisting of a mirror image of transposition of the abdominal and thoracic organs occurring in about 1:5000 to 1:10 000 adults. We report on a 60-year-old male with a single colorectal liver metastasis in the Segment 7. The patients underwent a totally laparoscopic sub-segmentectomy. Intraoperative approach on a reverse posterior segment was difficult because of left-sided position of the liver. Postoperative course was uneventful and the patient was discharged after 5 days...
January 17, 2017: Journal of Surgical Case Reports
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
#13
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/28093447/inflammasomes-and-cancer
#14
Rajendra Karki, Si Ming Man, Thirumala-Devi Kanneganti
Inflammation affects all stages of tumorigenesis. A key signaling pathway leading to acute and chronic inflammation is through activation of the caspase-1 inflammasome. Inflammasome complexes are assembled on activation of certain nucleotide-binding domain, leucine-rich repeat-containing proteins (NLR), AIM2-like receptors, or pyrin. Of these, NLRP1, NLRP3, NLRC4, NLRP6, and AIM2 influence the pathogenesis of cancer by modulating innate and adaptive immune responses, cell death, proliferation, and/or the gut microbiota...
January 16, 2017: Cancer Immunology Research
https://www.readbyqxmd.com/read/28089833/rufy3-promotes-metastasis-through-epithelial-mesenchymal-transition-in-colorectal-cancer
#15
Ruyi Xie, Jing Wang, Weimei Tang, Yueqiao Li, Ying Peng, Hui Zhang, Guangnan Liu, Xiaoting Huang, Jinjun Zhao, Aimin Li, Wei Gong, Ye Chen, Yuexin Ren, Yadong Wang, Guoxin Li, Side Liu, Jide Wang
Rufy3 is a RUN domain-containing protein that has been associated with gastric cancers; however, the role of Rufy3 in the progression of colorectal cancer (CRC) remains unknown. We demonstrated that Rufy3 expression was higher in 11/12 fresh CRC tissues than in adjacent normal tissues. Rufy3 induced elevated expression and transactivity of four major oncogenes in CRC. Moreover, siRNA-mediated repression of Rufy3 induced G0/G1 cell cycle arrest, and Rufy3 overexpression enhanced CRC cell proliferation in vitro and in vivo...
January 12, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28088787/hint2-downregulation-promotes-colorectal-carcinoma-migration-and-metastasis
#16
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/28088387/sirt2-mediated-antitumor-effects-of-shikonin-on-metastatic-colorectal-cancer
#17
Li-Li Zhang, Lin Zhan, Yong-Dong Jin, Zhen-Li Min, Can Wei, Qiang Wang, Ya-Jun Chen, Qing-Ming Wu, Xia-Min Hu, Qiong Yuan
SIRT2 is involved in the development of a variety of cancers. Shikonin is a natural compound that is known to have antitumor effects. This study aims to assess the effects of shikonin on the development and metastatic progression of colorectal cancer (CRC) through regulation of SIRT2 expression and whether this effect is related to the phosphorylation of extracellular signal-regulated kinases (ERKs). The results demonstrated that SIRT2 is downregulated in CRC biopsy samples (n=31) compared with the adjacent non-cancerous tissues (ANCT, n=26)...
January 12, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28088228/the-loss-of-function-mutations-and-down-regulated-expression-of-asb3-gene-promote-the-growth-and-metastasis-of-colorectal-cancer-cells
#18
Wu-Ying Du, Zhen-Hai Lu, Wen Ye, Xiang Fu, Yi Zhou, Chun-Mei Kuang, Jiang-Xue Wu, Zhi-Zhong Pan, Shuai Chen, Ran-Yi Liu, Wen-Lin Huang
BACKGROUND: Ankyrin repeat and SOCS box protein 3 (ASB3) is a member of ASB family and contains ankyrin repeat sequence and SOCS box domain. Previous studies indicated that it mediates the ubiquitination and degradation of tumor necrosis factor receptor 2 and is likely involved in inflammatory responses. However, its effects on oncogenesis are unclear. This study aimed to investigate the effects of ASB3 on the growth and metastasis of colorectal cancer (CRC). METHODS: We used next-generation sequencing or Sanger sequencing to detect ASB3 mutations in CRC specimens or cell lines, and used real-time quantitative polymerase chain reaction, Western blotting, and immunohistochemical or immunofluorescence assay to determine gene expression...
January 14, 2017: Chinese Journal of Cancer
https://www.readbyqxmd.com/read/28088224/clinical-analysis-of-krukenberg-tumours-in-patients-with-colorectal-cancer-a-review-of-57-cases
#19
K Y Xu, H Gao, Z J Lian, L Ding, M Li, J Gu
BACKGROUND: A Krukenberg tumour (KT) is defined as an ovarian metastasis from a gastrointestinal adenocarcinoma and suggests a terminal condition. This study aimed to identify the prognostic factors affecting the survival of patients with KTs of colorectal origin who receive cytoreductive surgery. METHODS: Medical records of patients who had received cytoreductive surgery and had been pathologically diagnosed with KT of colorectal origin in two centres were reviewed...
January 14, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28079003/colorectal-cancer-chemotherapy-the-evolution-of-treatment-and-new-approaches
#20
Rachel M McQuade, Vanesa Stojanovska, Joel C Bornstein, Kulmira Nurgali
Colorectal cancer (CRC) is one the greatest contributors to cancer related mortality. Although 5 year survival rate for patients at the early stage of CRC (stages I and II) is above 60%, more than 50% of patients are diagnosed at or beyond stage III when distant metastasis has already occurred, in which case 5 year survival rate drops to 10%. Chemotherapeutic intervention coupled with surgery is the backbone of metastatic CRC treatment and the only means of enhanced survival. For decades following its discovery, an antimetabolite 5-fluorouracil (5-FU) was the only chemotherapeutic agent available to successfully improve 12 month survival in CRC patients...
January 11, 2017: Current Medicinal Chemistry
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