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Colorectal cancer microRNA

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https://www.readbyqxmd.com/read/29781037/microrna-485-plays-tumour-suppressive-roles-in-colorectal-cancer-by-directly-targeting-gab2
#1
Jibin Li, Jian Xu, Xiaofei Yan, Keer Jin, Wenya Li, Rui Zhang
Colorectal cancer (CRC) is reported to be the third most common cancer and the fourth leading cause of cancer-related deaths around the world. MicroRNA-485 (miR-485) has been reported to be aberrantly expressed and play important roles in several types of human malignancy. However, the expression level, biological functions and underlying molecular mechanisms of miR-485 in CRC remain unclear. Therefore, the aim of the present study was to determine miR-485 expression levels and their clinical significance in CRC and to explore the functions and underlying mechanisms of miR-485 in this disease...
May 17, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29780253/a-5-serum-mirna-panel-for-the-early-detection-of-colorectal-cancer
#2
Shaohua Guo, Jiajin Zhang, Baishi Wang, Bingdong Zhang, Xuning Wang, Liang Huang, Hongyi Liu, Baoqing Jia
Objective: The study aimed to screen microRNAs (miRNAs) that can be used for the early detection of colorectal cancer (CRC) based on differential expression of miRNA in serum. Materials and methods: A three-stage study was designed with a total of 217 CRCs, 168 colorectal adenomas (CRAs), and 190 healthy controls (HCs). A quantitative reverse transcription polymerase chain reaction was performed in three stages. We screened 528 miRNA expression profiles in the sera of 40 patients (CRC n=20, CRA n=10, and HC n=10) for candidate miRNAs, then 210 serum samples (CRC n=90, CRA n=60, and HC n=60) were used for screening of candidate miRNAs...
2018: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29779016/integrated-analysis-of-colorectal-cancer-microrna-datasets-identification-of-micrornas-associated-with-tumor-development
#3
Luca Falzone, Letizia Scola, Antonino Zanghì, Antonio Biondi, Antonio Di Cataldo, Massimo Libra, Saverio Candido
Colorectal cancer (CRC) is one of the leading cause of cancer death worldwide. Currently, no effective early diagnostic biomarkers are available for colorectal carcinoma. Therefore, there is a need to discover new molecules able to identify pre-cancerous lesions. Recently, microRNAs (miRNAs) have been associated with the onset of specific pathologies, thus the identification of miRNAs associated to colorectal cancer may be used to detect this pathology at early stages. On these bases, the expression levels of miRNAs were analyzed to compare the miRNAs expression levels of colorectal cancer samples and normal tissues in several miRNA datasets...
May 18, 2018: Aging
https://www.readbyqxmd.com/read/29768262/mir-598-suppresses-invasion-and-migration-by-negative-regulation-of-derlin-1-and-epithelial-mesenchymal-transition-in-non-small-cell-lung-cancer
#4
Fengming Yang, Ke Wei, Zhiqiang Qin, Weitao Liu, Chuchu Shao, Chaoshan Wang, Ling Ma, Mengyan Xie, Yongqian Shu, Hua Shen
BACKGROUND/AIMS: MicroRNAs regulate a wide range of biological processes of non-small cell lung cancer (NSCLC). Although miR-598 has been reported to act as a suppressor in osteosarcoma and colorectal cancer, the physiological function of miR-598 in NSCLC remains unknown. In this study, the role of miR-598 in NSCLC was investigated. METHODS: Quantitative real-time polymerase chain reaction (qRT-PCR) was conducted to estimate the expression of miR-598 and Derlin-1 (DERL1) in both NSCLC tissues and cell lines...
May 11, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29765562/a-myriad-of-roles-of-mir-25-in-health-and-disease
#5
REVIEW
Márta Sárközy, Zsuzsanna Kahán, Tamás Csont
Small non-coding RNAs including microRNAs (miRNAs) have been recently recognized as important regulators of gene expression. MicroRNAs play myriads of roles in physiological processes as well as in the pathogenesis of a number of diseases by translational repression or mRNA destabilization of numerous target genes. The miR-106b-25 cluster is highly conserved in vertebrates and consists of three members including miR-106b, miR-93 and miR-25. MiR-106b and miR-93 share the same seed sequences; however, miR-25 has only a similar seed sequence resulting in different predicted target mRNAs...
April 20, 2018: Oncotarget
https://www.readbyqxmd.com/read/29760585/mir-93-5p-enhance-lacrimal-gland-adenoid-cystic-carcinoma-cell-tumorigenesis-by-targeting-brms1l
#6
Jie Hao, Xin Jin, Yan Shi, Hong Zhang
Background: Lacrimal adenoid cystic carcinoma (LACC) is one of the most common malignancies that affects lacrimal gland. MicroRNAs are known to play a crucial role as oncogenes or tumor suppressors. Specifically, miR-93 has been reported to play a crucial role in colorectal, breast, pancreatic, lung cancer and hepatocellular carcinoma. However, the role of miR-93 in LACC and the potential molecular mechanisms involved remain unknown. Therefore, we took the challenge to determine the involvement of miR-93 in the LACC by targeting BRMS1L...
2018: Cancer Cell International
https://www.readbyqxmd.com/read/29750311/microrna-150-inhibits-the-proliferation-and-metastasis-potential-of-colorectal-cancer-cells-by-targeting-iaspp
#7
Chen Li, Xiaohui Du, Shaoyou Xia, Lin Chen
In the present study, the function of miR-150 and its downstream target iASPP in the growth and metastasis of colorectal cancer (CRC) cells was investigated. The expression of miR-150 and iASPP was first investigated in clinical CRC samples. Subsequently, the effects of miR-150 overexpression and iASPP inhibition on cell viability, cell cycle distribution, apoptosis, migration and invasion were detected with CCK-8, flow cytometry, scratch and Transwell assays. The interaction between miR-150 and iASPP was confirmed using a dual-luciferase assay...
April 30, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29750053/prognostic-value-of-micrornas-in-colorectal-cancer-a-meta-analysis
#8
Song Gao, Zhi-Ying Zhao, Rong Wu, Yue Zhang, Zhen-Yong Zhang
Background: Numerous studies have shown that miRNA levels are closely related to the survival time of patients with colon, rectal, or colorectal cancer (CRC). However, the outcomes of different investigations have been inconsistent. Accordingly, a meta-analysis was conducted to study associations among the three types of cancers. Materials and methods: Studies published in English that estimated the expression levels of miRNAs with survival curves in CRC were identified until May 20, 2017 by online searches in PubMed, Embase, Web of Science, and the Cochrane Library by two independent authors...
2018: Cancer Management and Research
https://www.readbyqxmd.com/read/29748374/the-microrna-371-373-cluster-represses-colon-cancer-initiation-and-metastatic-colonization-by-inhibiting-the-tgfbr2-id1-signaling-axis
#9
Pit Ullmann, Fabien Rodriguez, Martine Schmitz, Steffen K Meurer, Komal Qureshi-Baig, Paul Felten, Aurélien Ginolhac, Laurent Antunes, Sonia Frasquilho, Nikolaus Zügel, Ralf Weiskirchen, Serge Haan, Elisabeth Letellier
The vast majority of colorectal cancer (CRC)-related deaths can be attributed to metastatic spreading of the disease. Therefore, deciphering molecular mechanisms of metastatic dissemination is a key prerequisite to improve future treatment options. With this aim, we took advantage of different CRC cell lines and recently established primary cultures enriched in colon cancer stem cells (CSCs) - also known as tumor-initiating cells (TICs) - to identify genes and microRNAs (miRNAs) with regulatory functions in CRC progression...
May 10, 2018: Cancer Research
https://www.readbyqxmd.com/read/29740483/reduced-mir-433-expression-is-associated-with-advanced-stages-and-early-relapse-of-colorectal-cancer-and-restored-mir-433-expression-suppresses-the-migration-invasion-and-proliferation-of-tumor-cells-in-vitro-and-in-nude-mice
#10
Jian Zhang, Lei Zhang, Tong Zhang, Xin-Min Dong, Yu Zhu, Long-Hua Chen
The expression of microRNA (miR-433) is altered in various types of human cancer. The present study analyzed the prognostic and biological value of miR-433 expression in colorectal cancer using reverse transcription-quantitative polymerase chain reaction in 125 colorectal tissue specimens (including a test cohort of 40 cases of paired colorectal cancer and adjacent normal mucosae and a confirmation cohort of 85 cases of stage I-III colorectal cancer). In vitro and nude mouse xenograft experiments were subsequently used to assess the effects of miR-433 expression on the regulation of colorectal cancer cell proliferation, adhesion, migration, and invasion...
May 2018: Oncology Letters
https://www.readbyqxmd.com/read/29739921/microrna-181a-promotes-angiogenesis-in-colorectal-cancer-by-targeting-srcin1-to-promote-the-src-vegf-signaling-pathway
#11
Wu Sun, Xiaojun Wang, Jialu Li, Chaoying You, Pan Lu, Huijin Feng, Yan Kong, Haiyang Zhang, Yanqing Liu, Ruihua Jiao, Xi Chen, Yi Ba
Colorectal cancer (CRC) is a very common metastatic tumor with active angiogenesis that requires active angiogenesis. Recently, increased microRNA-181a-5p (miR-181a) expression was found to be significantly associated with liver metastasis and poor outcome in CRC patients. In this study, the role of miR-181a in tumor angiogenesis was further investigated. Capillary tube formation assays were used to demonstrate the ability of miR-181a to promote tumor angiogenesis. Bioinformatics analyses identified SRC kinase signaling inhibitor 1 (SRCIN1) as a potential target of miR-181a...
April 19, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29739108/using-blood-and-plasma-micrornas-as-a-non-invasive-biomarker-in-patients-with-colorectal-cancer
#12
Horatiu Stefanescu, Delia Muntean, Ciprian Pilut, Mircea Diaconu, Roxana Popescu, Delia Hutanu, Marius Moise, Lighezan Diana, Razvan Nitu, Alina Popa Cherecheanu, Silvius Negoita, Ciprian V Iovan, Emil Ungureanu, Valentin Calu, Ioana Ciuca
BACKGROUND: A high percentage of oncological patients die yearly because of colorectal cancer (CRC). Worldwide, CRC represents the fourth leading cause of death among oncological patients. Numerous studies have been conducted in order to identify new biomarkers for the early diagnosis of patients with CRC. From this point of view, an ideal biomarker is represented by the expression of microRNAs. In this paper, we wish to summarize the expressions of microRNAs in CRC and to present the pathophysiological and genetic interactions that microRNAs have with protein systems in these patients...
March 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29739047/identification-of-differentially-expressed-micrornas-involved-in-the-pathogenesis-of-colorectal-cancer
#13
Haiyi Feng, Ming Xu, Yunpeng Zhang, Bo Han, Jue Wang, Peng Sun
BACKGROUND: The ability to diagnose or treat colorectal cancer (CRC) at an early stage could lead to the improved survival. The purpose of this study was to identify differentially expressed microRNAs (miRNAs) involved in the pathogenesis of CRC. These miRNAs may serve as the biomarkers or potential therapeutic targets for CRC early detection or treatment. METHODS: The GSE39814 miRNA expression profile dataset was downloaded from the NCBI GEO database. MiRNAs were extracted from the exosome fractions of three normal fetal colon-derived cells and HCT116 and SW480 cell lines...
May 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29737580/long-non-coding-rna-foxd2-as1-contributes-to-colorectal-cancer-proliferation-through-its-interaction-with-microrna-185-5p
#14
Yanyan Zhu, Liang Qiao, Yun Zhou, Ning Ma, Chaojie Wang, Jianwei Zhou
Emerging evidence has indicated that long non-coding RNA plays an important role in the carcinogenesis at the transcriptional and post-translational levels. The regulation of carcinogenesis related effectors is potent in the determination of tumor initiation and progression. In current study, FOXD2-AS1 was found to interact with miR-185-5p to modulate proliferation, migration and invasion of colorectal cancer (CRC) cells. Interestingly, cell division control (CDC) 42 expression was significantly influenced by FOXD2-AS1 and miR-185-5p...
May 8, 2018: Cancer Science
https://www.readbyqxmd.com/read/29737552/competing-endogenous-rna-network-crosstalk-reveals-novel-molecular-markers-in-colorectal-cancer
#15
Nehal Samir, Marwa Matboli, Hanaa El-Tayeb, Ahmed El-Tawdi, Mohmed K Hassan, Sherif El-Khamisy, Hesham A E El-Akkad, Mohamed G Ramadan, Tarek N Al-Belkini, Farid El-Asmar
The competing endogenous RNA networks play a pivotal role in cancer diagnosis and progression. Novel properstrategies for early detection of colorectal cancer (CRC) are strongly needed. We investigated a novel CRC-specific RNA-based integrated competing endogenous network composed of lethal3 malignant brain tumor like1 (L3MBTL1) gene, long non-coding intergenic RNA- (lncRNA RP11-909B2.1) and homo sapiens microRNA-595 (hsa-miRNA-595) using in silico data analysis. RT-qPCR-based validation of the network was achieved in serum of 70 patients with CRC, 40 patients with benign colorectal neoplasm, and 20 healthy controls...
May 8, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29735329/dna-methylation-mediated-repression-of-mir-181a-135a-302c-expression-promotes-the-microsatellite-unstable-colorectal-cancer-development-and-5-fu-resistance-via-targeting-plag1
#16
Lu Shi, Xiang Li, Zhiqiang Wu, Xiaolei Li, Jing Nie, Mingzhou Guo, Qian Mei, Weidong Han
Microsatellite instability (MSI) defines a subtype of colorectal cancer (CRC) with typical clinicopathologic characteristics. CRCs with MSI (MSI CRCs) frequently acquire accelerated carcinogenesis and 5-FU resistance, and the exact underlying mechanism remains incompletely understood. Our previous study has identified the microRNA (miRNA) expression profile in MSI CRCs. In this study, three miRNAs (miR-181a, miR-135a and miR-302c) were validated by qRT-PCR to be dramatically decreased in 67 CRC samples. Proliferation and apoptosis assays demonstrated that miR-181a/135a/302c function as tumor suppressors via repressing PLAG1/IGF2 signaling...
April 13, 2018: Journal of Genetics and Genomics, Yi Chuan Xue Bao
https://www.readbyqxmd.com/read/29731918/mir-211-regulates-the-expression-of-rrm2-in-tumoral-metastasis-and-recurrence-in-colorectal-cancer-patients-with-a-k-ras-gene-mutation
#17
Chiu-Chun Chang, Chun-Che Lin, Chia-Hung Wang, Chi-Chou Huang, Tao-Wei Ke, Po-Li Wei, Ken-Tu Yeh, Kai-Cheng Hsu, Nan-Yung Hsu, Ya-Wen Cheng
Colorectal cancer (CRC) ranks as the third-leading cause of cancer-associated mortalities in Taiwan. The expression of ribonucleotide reductase M2 ( RRM2 ) and p53R2 is associated with tumoral malignancy and progression in several types of cancer. The aim of the present study was to determine the association of p53R2/RRM2 with the upstream expression of microRNA ( miR)-211 and the association of expression levels of p53, APC and k-ras with clinical outcomes in patients with CRC. The study consisted of 192 tumor tissue samples obtained from patients with CRC...
May 2018: Oncology Letters
https://www.readbyqxmd.com/read/29731866/microrna-hsa-let-7e-5p-as-a-potential-prognosis-marker-for-rectal-carcinoma-with-liver-metastases
#18
Wenfeng Chen, Guosheng Lin, Yizhou Yao, Jishen Chen, Hanli Shui, Qinghai Yang, Xiaoya Wang, Xiaoyuan Weng, Ling Sun, Fei Chen, Sheng Yang, Yufeng Yang, Yongjian Zhou
MicroRNAs (miRNAs) are post-transcriptional regulators of gene expression that target mRNAs for translational repression or cleavage. The present study was conducted to identify differentially expressed miRNAs in primary tumor tissues of rectal carcinoma (RC) that may be associated with heterochrony hepatic metastasis (HHM). Samples were collected exclusively from patients with RC but not colon cancer (CC); Next-generation high-throughput sequencing technology and bioinformatics tools were used to profile and analyze small RNAs and their corresponding targets in primary tumor tissues with HHM (n=2) or without metastases (non-metastatic, NM; n=2)...
May 2018: Oncology Letters
https://www.readbyqxmd.com/read/29726910/single-nucleotide-polymorphisms-of-stemness-genes-predicted-to-regulate-rna-splicing-microrna-and-oncogenic-signaling-are-associated-with-prostate-cancer-survival
#19
Jennifer A Freedman, Yanru Wang, Xuechan Li, Hongliang Liu, Patricia G Moorman, Daniel J George, Norman H Lee, Terry Hyslop, Qingyi Wei, Steven R Patierno
Prostate cancer is a clinically and molecularly heterogeneous disease, with variation in outcomes only partially predicted by grade and stage. Additional tools to distinguish indolent from aggressive disease are needed. Phenotypic characteristics of stemness correlate with poor cancer prognosis. Given this correlation, we identified single nucleotide polymorphisms (SNPs) of stemness-related genes and examined their associations with prostate cancer survival. SNPs within stemness-related genes were analyzed for association with overall survival of prostate cancer in the Prostate, Lung, Colorectal and Ovarian Cancer Screening Trial...
May 3, 2018: Carcinogenesis
https://www.readbyqxmd.com/read/29725503/mirna-involvement-in-cell-cycle-regulation-in-colorectal-cancer-cases
#20
Lila E Mullany, Jennifer S Herrick, Lori C Sakoda, Wade Samowitz, John R Stevens, Roger K Wolff, Martha L Slattery
Uncontrolled cell replication is a key component of carcinogenesis. MicroRNAs (miRNAs) regulate genes involved in checkpoints, DNA repair, and genes encoding for key proteins regulating the cell cycle. We investigated how miRNAs and mRNAs in colorectal cancer subjects interact to regulate the cell cycle. Using RNA-Seq data from 217 individuals, we analyzed differential expression (carcinoma minus normal mucosa) of 123 genes within the cell cycle pathway with differential miRNA expression, adjusting for age and sex...
January 2018: Genes & Cancer
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