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Colorectal cancer microRNA

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https://www.readbyqxmd.com/read/28431404/upregulation-of-microrna-125b-by-g-csf-promotes-metastasis-in-colorectal-cancer
#1
Xinghua Zhang, Xiao Ma, Huaying An, Changqing Xu, Wenjo Cao, Wei Yuan, Jie Ma
Although there are reports of miR-125b being dysregulated in colorectal cancer (CRC) and associated with CRC progression, little is known about its intrinsic regulatory mechanisms. Here we detected the expression of miR-125b in CRC tissues, subsequently investigated the effect of miR-125b on the proliferation, apoptosis, cell cycle and metastasis on CRC cells. Our results showed that the expression of miR-125b was significantly decreased in CRC tissues comparing to adjacent tissues. However, with the stimulation of Granulocyte colony-stimulating factor (G-CSF), which was highly expressed in CRC tissues, the expression of miR-125b could be improved...
April 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28431272/specific-microrna-mrna-regulatory-network-of-colon-cancer-invasion-mediated-by-tissue-kallikrein-related-peptidase-6
#2
Earlphia Sells, Ritu Pandey, Hwudaurw Chen, Bethany A Skovan, Haiyan Cui, Natalia A Ignatenko
Metastatic colon cancer is a major cause of deaths among colorectal cancer (CRC) patients. Elevated expression of kallikrein 6 (KLK6), a member of a kallikrein subfamily of peptidase S1 family serine proteases, has been reported in CRC and is associated with low patient survival rates and poor disease prognosis. We knocked down KLK6 expression in HCT116 colon cancer cells to determine the significance of KLK6 expression for metastatic dissemination and to identify the KLK6-associated microRNAs (miRNAs) signaling networks in metastatic colon cancer...
April 18, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28430582/lncrna-chrf-induced-mir-489-loss-promotes-metastasis-of-colorectal-cancer-via-twist1-emt-signaling-pathway
#3
Youmao Tao, Tao Han, Tao Zhang, Chong Ma, Caixia Sun
microRNA-489 (miR-489) is a novel cancer-related miRNAs and functions as a tumor suppressor in human cancers. While, the clinical significance of miR-489 and its role in colorectal cancer (CRC) remain rarely known. Here, we found that the levels of miR-489 in CRC tissues were significantly lower than those in matched tumor-adjacent tissues. Furthermore, decreased levels of miR-489 also observed in CRC cell lines compared to HIEC cells. Clinicopathological analysis revealed that miR-489 underexpression was positively correlated with advanced pT stage, pN stage and AJCC stage...
April 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28424679/linking-diet-to-colorectal-cancer-the-emerging-role-of-microrna-in-the-communication-between-plant-and-animal-kingdoms
#4
REVIEW
Manuela Del Cornò, Gloria Donninelli, Lucia Conti, Sandra Gessani
Environmental and lifestyle factors, including diet and nutritional habits have been strongly linked to colorectal cancer (CRC). Of note, unhealthy dietary habits leading to adiposity represent a main risk factor for CRC and are associated with a chronic low-grade inflammatory status. Inflammation is a hallmark of almost every type of cancer and can be modulated by several food compounds exhibiting either protective or promoting effects. However, in spite of an extensive research, the underlying mechanisms by which dietary patterns or bioactive food components may influence tumor onset and outcome have not been fully clarified yet...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28423501/epigenetic-silencing-of-mir-520c-leads-to-induced-s100a4-expression-and-its-mediated-colorectal-cancer-progression
#5
Giridhar Mudduluru, Katharina Ilm, Steffen Fuchs, Ulrike Stein
The S100 calcium-binding protein A4 (S100A4) induces epithelial mesenchymal transition, migration, invasion, angiogenesis and metastasis. Its induced expression in several cancer types correlates with poor prognosis. Apart from the functional and transcriptional regulatory aspects of S100A4, its post-transcriptional regulation is not yet clearly elucidated. In this study, we show that microRNAs (miR) miR-505-5p and miR-520c-3p target the 3'-UTR of S100A4 and inhibits its expression and its mediated migration and invasion...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423356/knockdown-of-mir-27a-sensitizes-colorectal-cancer-stem-cells-to-trail-by-promoting-the-formation-of-apaf-1-caspase-9-complex
#6
Rui Zhang, Jian Xu, Jian Zhao, Jinghui Bai
MicroRNAs have been proved to participate in multiple biological processes in cancers. For developing resistance to cytotoxic drug, cancer cells, especially the cancer stem cells, usually change their microRNA expression profile to survive in hostile environments. In the present study, we found that expression of microRNA-27a was increased in colorectal cancer stem cells. High level of microRNA-27a was indicated to induce the resistance to TNF-related apoptosis-inducing ligand (TRAIL). Knockdown of microRNA-27a resensitized colorectal cancer stem cells to TRAIL-induced cell death...
April 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422727/microrna-22-suppresses-the-growth-migration-and-invasion-of-colorectal-cancer-cells-through-a-sp1-negative-feedback-loop
#7
Shu-Sen Xia, Guang-Jun Zhang, Zuo-Liang Liu, Hong-Peng Tian, Yi He, Chang-Yuan Meng, Li-Fa Li, Zi-Wei Wang, Tong Zhou
MicroRNAs have recently emerged as regulators of many biological processes including cell proliferation, development and differentiation. This study identified that miR-22 was statistically decreased in colorectal cancer clinical specimens and highly metastatic cell lines. Moreover, low miR-22 expression was associated with tumor metastasis, advanced clinical stage and relapse. Consistent with clinical observations, miR-22 significantly suppressed the ability of colorectal cancer cells to growth and metastasize in vitro and in vivo...
March 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/28418858/the-mir-124-p63-feedback-loop-modulates-colorectal-cancer-growth
#8
Kuijie Liu, Hongliang Yao, Sanlin Lei, Li Xiong, Haizhi Qi, Ke Qian, Jiqiang Liu, Peng Wang, Hua Zhao
Among the diverse co-regulatory relationships between transcription factors (TFs) and microRNAs (miRNAs), feedback loops have received the most extensive research attention. The co-regulation of TFs and miRNAs plays an important role in colorectal cancer (CRC) growth. Here, we show that miR-124 can regulate two isoforms of p63, TAp63 and ΔNp63, via iASPP, while p63 modulates signal transducers and activators of transcription 1 (STAT1) expression by targeting miR-155. Moreover, STAT1 acts as a regulator of CRC growth by targeting miR-124...
March 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28418082/non-digestible-carbohydrates-supplementation-increases-mir-32-expression-in-the-healthy-human-colorectal-epithelium-a-randomized-controlled-trial
#9
Fiona C Malcomson, Naomi D Willis, Iain McCallum, Long Xie, Bart Lagerwaard, Seamus Kelly, Michael Bradburn, Nigel J Belshaw, Ian T Johnson, John C Mathers
Colorectal cancer (CRC) risk is modulated by diet and there is convincing evidence of reduced risk with higher non-digestible carbohydrates (NDCs) consumption. Resistant starch (RS), a NDC, positively modulates the expression of oncogenic microRNAs, suggesting that this could be a mechanism through which NDCs protect against CRC. The present study aimed to investigate the effects of supplementation with two NDCs, RS and polydextrose (PD), on microRNA expression in the macroscopically-normal human rectal epithelium using samples from the DISC Study, a randomised, double-blind, placebo-controlled dietary intervention...
April 18, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28415817/an-updated-meta-analysis-of-23-case-control-studies-on-the-association-between-mir-34b-c-polymorphism-and-cancer-risk
#10
Hua Li, Shuling Diao, Jingsen Li, Baoxin Ma, Shuanghu Yuan
The association between in microRNA-34b/c gene rs4938723 polymorphisms and cancer risk remains inconclusive. This meta-analysis was performed to analyze the association between microRNA-34b/c rs4938723 polymorphism and risk for cancer development. In total, 304 studies from PubMed, Embase, Web of Science, Wanfang, and Chinese National Knowledge Infrastructure databases were examined, and 23 studies were included in this meta-analysis. The 23 selected studies involved 10,812 cancer cases and 11,719 controls...
March 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28415758/differential-microrna-expression-profiling-in-primary-tumors-and-matched-liver-metastasis-of-patients-with-colorectal-cancer
#11
Wenhua Li, Jinjia Chang, Duo Tong, Junjie Peng, Dan Huang, Weijian Guo, Wen Zhang, Jin Li
BACKGROUND: Liver metastasis is common in patients with colorectal cancer (CRC), and is correlated with poor outcome. MicroRNAs (miRNAs) are small non-coding RNAs involved in cancer development and progression, but their role in CRC liver metastasis has not been extensively investigated. RESULTS: Thirteen miRNAs were deregulated in pCRCs compared to their matched liver metastases. Seventeen miRNAs were chosen for validation, which confirmed significantly reduced expression of miR-99b-5p, miR-377 and miR-200c and increased expression of miR-196b-5p in the tissue of liver metastasis...
March 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28415652/the-clinical-role-of-microrna-21-as-a-promising-biomarker-in-the-diagnosis-and-prognosis-of-colorectal-cancer-a-systematic-review-and-meta-analysis
#12
Qiliang Peng, Xueli Zhang, Ming Min, Li Zou, Peipei Shen, Yaqun Zhu
This systematic analysis aimed to investigate the value of microRNA-21 (miR-21) in colorectal cancer for multiple purposes, including diagnosis and prognosis, as well as its predictive power in combination biomarkers. Fifty-seven eligible studies were included in our meta-analysis, including 25 studies for diagnostic meta-analysis and 32 for prognostic meta-analysis. For the diagnostic meta-analysis of miR-21 alone, the overall pooled results for sensitivity, specificity, and area under the curve (AUC) were 0...
March 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28415619/association-of-two-microrna-polymorphisms-mir-27-rs895819-and-mir-423-rs6505162-with-the-risk-of-cancer
#13
Hong Zhang, Yafei Zhang, Xixi Zhao, Xingcong Ma, Wanjun Yan, Wen Wang, Zitong Zhao, Qian Yang, Xi Sun, Hui Luan, Xiaoyan Gao, Shuqun Zhang
Many studies have been conducted to investigate the association between miR-27 rs895819 A > G and miR-423 rs6505162 C > A and cancer risk; however, the results are not consistent. In order to acquire a more precise assessment of the correlation, we performed this meta-analysis. We searched PubMed, EMBASE and Web of Science databases to identify eligible studies. Pooled odds ratios (ORs) and 95% confidence intervals (CIs) were applied to evaluate the correlation of these two microRNA polymorphisms with cancer risk...
March 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28413641/serum-mir-20a-is-a-promising-biomarker-for-gastric-cancer
#14
Ruirui Yang, Yun Fu, Ying Zeng, Mengqin Xiang, Yufang Yin, Li Li, Haifan Xu, Jing Zhong, Xi Zeng
Gastric cancer (GC) is a common type of cancer, particularly in China. Numerous studies have demonstrated that circulating microRNAs (miRNAs) have potential applications as noninvasive biomarkers for cancer diagnosis and prognosis. Microarray-based serum miRNA profiling was performed on the serum of 12 paired pre- and post-operative GC patients to screen differentially expressed serum miRNAs. Twelve different serum miRNAs between pre- and post-operative GC patients were identified. Those miRNAs were verified by real-time quantitative polymerase chain reaction in 110 paired pre- and post-operative serum samples from 55 GC patients...
April 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28405738/evaluation-of-mir-506-and-mir-4316-expression-in-early-and-non-invasive-diagnosis-of-colorectal-cancer
#15
Paweł Krawczyk, Tomasz Powrózek, Tomasz Olesiński, Adam Dmitruk, Joanna Dziwota, Dariusz Kowalski, Janusz Milanowski
PURPOSE: Examination of the entire colon by colonoscopy remains the golden standard for screening of colorectal cancer (CRC). However, patients are reluctant to perform invasive colonoscopies because of interference with their intimacy. Therefore, the potential use of non-invasive analysis of microRNAs expression in liquid biopsy as a novel biomarker for early CRC has investigated in several studies. In this study, we analyzed the expression of two novel microRNAs: miR-506 and miR-4316, which have never been examined in CRC...
April 12, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28404964/identification-of-serum-mir-139-3p-as-a-non-invasive-biomarker-for-colorectal-cancer
#16
Lui Ng, Timothy Ming-Hun Wan, Johnny Hon-Wai Man, Ariel Ka-Man Chow, Deepak Iyer, Guanghua Chen, Thomas Chung-Cheung Yau, Oswens Siu-Hung Lo, Dominic Chi-Chung Foo, Jensen Tung-Chung Poon, Wai-Keung Leung, Roberta Wen-Chi Pang, Wai-Lun Law
Aberrant levels of circulating microRNAs are potential biomarkers for the early detection of colorectal cancer. The aim of this study was to study miR-139-3p and miR-622 in serum as a non-invasive biomarker for colorectal cancer diagnosis. We applied quantitative polymerase chain reaction to determine the levels of miR-139-3p and miR-622 in 42 pairs of tumor and adjacent non-tumor tissues, and in serum samples of 117 patients and 90 control subjects. Our results showed that miR-139-3p was silenced whereas miR-622 was overexpressed in colorectal cancer...
March 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28402940/prognostic-role-of-micrornas-in-human-gastrointestinal-cancer-a-systematic-review-and-meta-analysis
#17
REVIEW
Qiang Zheng, Changyu Chen, Haiyang Guan, Weibiao Kang, Changjun Yu
BACKGROUND: Gastrointestinal cancers (GICs) mainly including esophageal, gastric and colorectal cancer, are the most common cause of cancer-related death and lead into high mortality worldwide. We performed this systematic review and meta-analysis to elucidate relationship between multiple microRNAs (miRs) expression and survival of GIC patients. METHODS: We searched a wide range of database. Fixed-effects and random-effects models were used to calculate the pooled hazard ratio values of overall survival and disease free survival...
March 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28401648/current-status-and-perspectives-regarding-lna-anti-mir-oligonucleotides-and-microrna-mir-21-inhibitors-as-a-potential-therapeutic-option-in-treatment-of-colorectal-cancer
#18
Reza Nedaeinia, Amir Avan, Mehdi Ahmadian, Sasan Nedaee Nia, Maryam Ranjbar, Mohammadreza Sharifi, Mohammad Goli, Ahmad Piroozmand, Esmail Nourmohammadi, Mostafa Manian, Gordon A Ferns, Majid Ghayour-Mobarhan, Rasoul Salehi
Colorectal cancer (CRC) is among the leading causes of cancer-related death, principally due to its metastatic spread and multifactorial chemoresistance. The therapeutic failure can also be explained by inter- or intra-tumor genetic heterogeneity and tumor stromal content. Thus, the identification of novel prognostic biomarkers and therapeutic options are warranted in the management of CRC patients. There are data showing that microRNA-21 is elevated in different types of cancer, particularly colon adenocarcinoma and that this is association with a poor prognosis...
April 12, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28394633/cruciferous-vegetables-and-colorectal-cancer-prevention-through-microrna-regulation-a-review
#19
Jeong Hoon Pan, Breann Abernathy, Young Jun Kim, Jin Hyup Lee, Jun Ho Kim, Eui Cheol Shin, Jae Kyeom Kim
Diets rich in fruits and vegetables may lower colorectal cancer risk. In particular, a number of in vitro and in vivo studies demonstrated that cruciferous vegetables and their active compounds elicit chemopreventive potency through multiple mechanisms. However, it is relatively unexplored whether these vegetables modulate the risk of cancer development through epigenetic mechanisms including noncoding RNAs. Therefore, the objective of the present review is to report and discuss existing evidence with regards to modulation of microRNAs (miRNAs), one variety of noncoding RNAs, by cruciferous vegetables and their chemo-preventive effects against colorectal cancers...
April 10, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/28392501/non-coding-rnas-the-trojan-horse-in-two-way-communication-between-tumor-and-stroma-in-colorectal-and-hepatocellular-carcinoma
#20
Cristina- Sorina Cătană, Martin Pichler, Gianluigi Giannelli, Robert M Mader, Ioana Berindan-Neagoe
In a continuous and mutual exchange of information, cancer cells are invariably exposed to microenvironment transformation. This continuous alteration of the genetic, molecular and cellular peritumoral stroma background has become as critical as the management of primary tumor progression events in cancer cells. The communication between stroma and tumor cells within the extracellular matrix is one of the triggers in colon and liver carcinogenesis. All non- codingRNAs including long non-coding RNAs, microRNAs and ultraconserved genes play a critical role in almost all cancers and are responsible for the modulation of the tumor microenvironment in several malignant processes such as initiation, progression and dissemination...
February 25, 2017: Oncotarget
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