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colorectal cancer AND lncRNA

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https://www.readbyqxmd.com/read/28306719/chromosome-19q13-disruption-alters-expressions-of-cyp2a7-mia-and-mia-rab4b-lncrna-and-contributes-to-fap-like-phenotype-in-apc-mutation-negative-familial-colorectal-cancer-patients
#1
Lai Fun Thean, Yu Hui Wong, Michelle Lo, Carol Loi, Min Hoe Chew, Choong Leong Tang, Peh Yean Cheah
Familial adenomatous polyposis (FAP) is an autosomal-dominantly inherited form of colorectal cancer (CRC) caused by mutation in the adenomatous polyposis coli (APC) gene. Our ability to exhaustively screen for APC mutations identify microsatellite-stable and APC-mutation negative familial CRC patients, enabling us to search for novel genes. We performed genome-wide scan on two affected siblings of one family and 88 ethnicity- and gender-matched healthy controls to identify deletions shared by the siblings. Combined loss of heterozygosity, copy number and allelic-specific copy number analysis uncovered 5 shared deletions...
2017: PloS One
https://www.readbyqxmd.com/read/28302487/tug1-mediates-methotrexate-resistance-in-colorectal-cancer-via-mir-186-cpeb2-axis
#2
Changfeng Li, Yongjian Gao, Yongchao Li, Dayong Ding
Colorectal cancer (CRC) is a common malignancy, most of which remain unresponsive to chemotherapy. Methotrexate (MTX) is one of the earliest cytotoxic drugs and serves as an anti-metabolite and anti-folate chemotherapy for various types of cancer. However, MTX resistance prevents its clinical application in cancer therapy. Thereby, overcoming the drug resistance is an alternative strategy to maximize the efficacy of MTX therapies in clinics. Long non-coding RNAs (lncRNAs) have gained widespread attention in recent years...
March 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28260919/overexpression-of-the-long-non-coding-rna-linc-ubc1-is-associated-with-poor-prognosis-and-facilitates-cell-proliferation-migration-and-invasion-in-colorectal-cancer
#3
Xunfeng Gao, Jianfan Wen, Peng Gao, Guowei Zhang, Gangqing Zhang
Long non-coding RNAs (lncRNAs) serve comprehensive roles in various diseases, including cancer. lncRNA upregulated in bladder cancer 1 (linc-UBC1) is a notable biomarker of prognosis in certain cancer types; however, its involvement in the progression of colorectal cancer (CRC) remains unknown. The present study aimed to investigate the expression of linc-UBC1 in patients with CRC and to investigate its effect on CRC cells. The expression levels of linc-UBC1 were estimated by reverse transcription-quantitative polymerase chain reaction in clinical CRC specimens and matched adjacent non-tumor mucosa from 96 cases of CRC, as well as in a number of CRC cell lines...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28225893/lncrna-snhg12-promotes-cell-growth-and-inhibits-cell-apoptosis-in-colorectal-cancer-cells
#4
J Z Wang, C L Xu, H Wu, S J Shen
Several long non-coding RNA (lncRNA) might be correlated with the prognosis of colorectal cancer (CRC) and serve as a diagnostic and prognostic biomarker. However, the exact expression pattern of small nucleolar RNA host gene 12 (SNHG12) in colorectal cancer and its clinical significance remains unclear. The level of SNHG12 was detected by qRT-PCR in CRC tissues and CRC cells. MTT assay and colony formation assay were performed to examine the cell proliferation of CRC cells transfected with pcDNA-SNHG12 or si-SNHG12...
February 20, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28216611/long-non-coding-rna-reprogramming-ror-promotes-cell-proliferation-in-colorectal-cancer-via-affecting-p53
#5
Hong Li, Xiumei Jiang, Xuemei Niu
BACKGROUND Colorectal cancer (CRC) remains one of the most common lethal malignant tumors worldwide. The correlation between lncRNAs expression and CRC development has not been well identified in the recent literature. This study focused on the role of lncRNA-ROR on CRC progression and development. MATERIAL AND METHODS Quantitative real-time PCR (qRT-PCR) assay was conducted to identify the expression level of lncRNA-ROR. Cell proliferation and viability were examined by MTT assay and colony formation assay...
February 20, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28214867/the-novel-long-noncoding-rna-tusc7-inhibits-proliferation-by-sponging-mir-211-in-colorectal-cancer
#6
Jian Xu, Rui Zhang, Jian Zhao
BACKGROUND/AIMS: The novel long noncoding RNA (lncRNA) tumor suppressor candidate 7 (TUSC7) has been reported as a potential tumor suppressor, while the functional role of TUSC7 is still unknown in colorectal cancer (CRC). Here, we characterized TUSC7 expression profile in CRC patients and investigated its biological function and potential molecular mechanism. METHODS: RNA isolation, qRT-PCR, cell counter kit-8 assay, cell cycle assay, EdU assay, and western blot were performed...
February 8, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28187432/comprehensive-investigation-of-a-novel-differentially-expressed-lncrna-expression-profile-signature-to-assess-the-survival-of-patients-with-colorectal-adenocarcinoma
#7
Jiang-Hui Zeng, Liang Liang, Rong-Quan He, Rui-Xue Tang, Xiao-Yong Cai, Jun-Qiang Chen, Dian-Zhong Luo, Gang Chen
Growing evidence has shown that long non-coding RNAs (lncRNAs) can serve as prospective markers for survival in patients with colorectal adenocarcinoma. However, most studies have explored a limited number of lncRNAs in a small number of cases. The objective of this study is to identify a panel of lncRNA signature that could evaluate the prognosis in colorectal adenocarcinoma based on the data from The Cancer Genome Atlas (TCGA). Altogether, 371 colon adenocarcinoma (COAD) patients with complete clinical data were included in our study as the test cohort...
February 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28177879/comprehensive-analysis-of-differentially-expressed-profiles-of-lncrnas-and-construction-of-mir-133b-mediated-cerna-network-in-colorectal-cancer
#8
Hao Wu, Runliu Wu, Miao Chen, Daojiang Li, Jing Dai, Yi Zhang, Kai Gao, Jun Yu, Gui Hu, Yihang Guo, Changwei Lin, Xiaorong Li
BACKGROUND: Growing evidence suggests that long non-coding RNAs (lncRNAs) play a key role in tumorigenesis. However, the mechanism remains largely unknown. RESULTS: Thousands of significantly dysregulated lncRNAs and mRNAs were identified by microarray. Furthermore, a miR-133b-meditated lncRNA-mRNA ceRNA network was revealed, a subset of which was validated in 14 paired CRC patient tumor/non-tumor samples. Gene set enrichment analysis (GSEA) results demonstrated that lncRNAs ENST00000520055 and ENST00000535511 shared KEGG pathways with miR-133b target genes...
February 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28176943/silence-of-long-noncoding-rna-pandar-switches-low-dose-curcumin-induced-senescence-to-apoptosis-in-colorectal-cancer-cells
#9
Tao Chen, Peng Yang, Hui Wang, Zhen-Yu He
Long noncoding RNAs (lncRNAs) are emerging as having multiple roles in cancer progression. However, roles of lncRNAs in chemotherapy for colorectal cancer (CRC) remain unclear. This study investigated the biological functions of lncRNA PANDAR in CRC cells treated with curcumin chemotherapy. Herein, we identified that PANDAR expression was not notably differential in CRC tissues compared with the corresponding normal tissues. Consistently, in vitro experiments revealed that knockdown of PANDAR could not change the proliferation, apoptosis, or senescence of CRC cells...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28164117/the-lncrna-h19-promotes-cell-proliferation-by-competitively-binding-to-mir-200a-and-derepressing-%C3%AE-catenin-expression-in-colorectal-cancer
#10
Weiwei Yang, Ning Ning, Xiaoming Jin
H19, a paternally imprinted noncoding RNA, has been found to be overexpressed in various cancers, including colorectal cancer (CRC), and may function as an oncogene. However, the mechanism by which H19 regulates CRC progression remains poorly understood. In this study, we aimed to assess H19 expression levels in CRC tissues, determine the effect of H19 on CRC proliferation, and explore the mechanism by which H19 regulates the proliferation of CRC. We measured H19 expression using qRT-PCR and analysed the effects of H19 on colon cancer cell proliferation via cell growth curve, cell viability assay, and colony formation assays...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28160106/variable-levels-of-long-noncoding-rna-expression-in-dna-mismatch-repair-proficient-early-stage-colon-cancer
#11
Qian Li, Nanshan Li, Yueqiong Lao, Wu Lin, Guojun Jiang, Nan Wei, Canghai Wang, Kuiliang Liu, Jing Wu
BACKGROUND: Long noncoding RNAs (lncRNAs) have been suggested to be biomarkers for diagnosis and prognosis of sporadic colorectal cancer. AIMS: This study aimed to characterize the expression profile of lncRNAs in DNA mismatch repair-proficient (pMMR) early-stage colon cancer (CC). METHODS: The microsatellite instability (MSI) status was examined by a multiplex PCR. The expression of lncRNA and mRNA was analyzed by microarrays. The differentially expressed lncRNAs and mRNAs were determined by bioinformatic analyses and validated in 44 CC samples and 32 non-tumor colonic specimens by quantitative real-time polymerase chain reaction (qRT-PCR)...
February 3, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28152521/lncsubpathway-a-novel-approach-for-identifying-dysfunctional-subpathways-associated-with-risk-lncrnas-by-integrating-lncrna-and-mrna-expression-profiles-and-pathway-topologies
#12
Yanjun Xu, Feng Li, Tan Wu, Yingqi Xu, Haixiu Yang, Qun Dong, Meiyu Zheng, Desi Shang, Chunlong Zhang, Yunpeng Zhang, Xia Li
Long non-coding RNAs (lncRNAs) play important roles in various biological processes, including the development of many diseases. Pathway analysis is a valuable aid for understanding the cellular functions of these transcripts. We have developed and characterized LncSubpathway, a novel method that integrates lncRNA and protein coding gene (PCG) expression with interactome data to identify disease risk subpathways that functionally associated with risk lncRNAs. LncSubpathway identifies the most relevance regions which are related with risk lncRNA set and implicated with study conditions through simultaneously considering the dysregulation extent of lncRNAs, PCGs and their correlations...
February 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28149533/tff3-dependent-resistance-of-human-colorectal-adenocarcinoma-cells-ht-29-b6-to-apoptosis-is-mediated-by-mir-491-5p-regulation-of-lncrna-prins
#13
Carlos Hanisch, Jutta Sharbati, Barbara Kutz-Lohroff, Otmar Huber, Ralf Einspanier, Soroush Sharbati
Tumour necrosis factor-α (TNF-α) is a double-edged cytokine associated with pathogenesis of inflammatory-related cancers being also able to induce cancer cell death. In the process of tumour development or metastasis, cancer cells can become resistant to TNF-α. In trefoil factor 3 (TFF3) overexpressing colorectal adenocarcinoma cells (HT-29/B6), we observed enhanced resistance against TNF-α/interferon gamma-induced apoptosis. TFF3 is a secreted small peptide that supports intestinal tissue repair but is also involved in intestinal tumour progression and scattering...
2017: Cell Death Discovery
https://www.readbyqxmd.com/read/28141796/epigenomic-landscape-of-5-hydroxymethylcytosine-reveals-its-transcriptional-regulation-of-lncrnas-in-colorectal-cancer
#14
Hanyang Hu, Maoguo Shu, Lin He, Xueyuan Yu, Xiangyu Liu, Yalin Lu, Yinghong Chen, Xiaoping Miao, Xiaohua Chen
BACKGROUND: DNA methylation at the 5 position of cytosine (5mC) can be converted to 5-hydroxymethylcytosine (5hmC) by the ten-eleven translocation family. The loss of global levels of 5hmC has been regarded as a hallmark in various cancers. 5-hydroxymethylcytosine is distributed at protein-coding gene bodies and promoters; however, the role and distribution of 5hmC at long non-coding RNAs (lncRNAs) is not clear. We investigated the distribution and regulatory roles of 5hmC for lncRNAs in colorectal cancer (CRC)...
February 28, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28118609/the-clinical-value-of-lncrna-neat1-in-digestive-system-malignancies-a-comprehensive-investigation-based-on-57-microarray-and-rna-seq-datasets
#15
Dan-Dan Xiong, Zhen-Bo Feng, Wei-Luan Cen, Jing-Jing Zeng, Lu Liang, Rui-Xue Tang, Xiao-Ning Gan, Hai-Wei Liang, Zu-Yun Li, Gang Chen, Dian-Zhong Luo
This comprehensive investigation was performed to evaluate the expression level and potential clinical value of NEAT1 in digestive system malignancies. A total of 57 lncRNA datasets of microarray or RNA-seq and 5 publications were included. The pooled standard mean deviation (SMD) indicated that NEAT1 was down-regulated in esophageal carcinoma (ESCA, SMD = -0.35, 95% CI: -0.5~-0.20, P < 0.0001) and hepatocellular carcinoma (HCC, SMD = -0.47, 95% CI: -0.60~-0.34, P < 0.0001), while in pancreatic cancer (PC), NEAT1 was up-regulated (SMD = 0...
January 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/28115855/long-noncoding-rna-crnde-functions-as-a-competing-endogenous-rna-to-promote-metastasis-and-oxaliplatin-resistance-by-sponging-mir-136-in-colorectal-cancer
#16
Hongyan Gao, Xiaodi Song, Ting Kang, Baohong Yan, Li Feng, Li Gao, Liang Ai, Xiaoni Liu, Jie Yu, Huiqi Li
Colorectal neoplasia differentially expressed (CRNDE) is a novel gene recognized as a long noncoding RNA (lncRNA) that is highly elevated in colorectal cancer and many other solid tumors but its functions on metastasis and oxaliplatin (OXA) resistance are unknown. In our study, we confirmed the upregulation of CRNDE in both primary specimens from colorectal cancer patients and colorectal cancer cell lines. Knockdown of CRNDE expression inhibited the migration and invasion potency of colorectal cancer cells with no effect on cell apoptosis...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28112720/long-noncoding-rna-hoxa-as2-represses-p21-and-klf2-expression-transcription-by-binding-with-ezh2-lsd1-in-colorectal-cancer
#17
J Ding, M Xie, Y Lian, Y Zhu, P Peng, J Wang, L Wang, K Wang
Long noncoding RNAs (lncRNAs) have received increased attention as a new class of functional regulators involved in human carcinogenesis. HOXA cluster antisense RNA 2 (HOXA-AS2) is a 1048-bp lncRNA located between the HOXA3 and HOXA4 genes in the HOXA cluster that regulates gene expression at a transcription level. HOXA-AS2 is previously found to be overexpressed in gastric cancer (GC) and promotes GC cells proliferation. However, its potential role and molecular mechanism in colorectal cancer (CRC) are not known...
January 23, 2017: Oncogenesis
https://www.readbyqxmd.com/read/28106826/colorectal-carcinoma-a-general-overview-and-future-perspectives-in-colorectal-cancer
#18
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/28106228/expression-of-long-non-coding-rna-pandar-and-its-prognostic-value-in-colorectal-cancer-patients
#19
Xiangke Li, Feng Wang, Yan Sun, Qingxia Fan, Guangfei Cui
BACKGROUND: Long noncoding RNAs (lncRNAs) are emerging as key molecules in human cancer. In the present study, we explored the role of the lncRNA PANDAR in colorectal cancer (CRC). METHODS: The relative expression level of lncRNA PANDAR in CRC tissues and cell lines was determined by quantitative real-time polymerase chain reaction (qRT-PCR). The associations between PANDAR expression and clinicopathological features of CRC patients were further analyzed. Kaplan-Meier survival analysis was performed to evaluate the value of PANDAR in the prognosis of CRC patients...
January 18, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28099409/up-regulated-expression-of-spry4-it1-predicts-poor-prognosis-in-colorectal-cancer
#20
Wenlong Tan, Zi-Zheng Song, Qunfang Xu, Xinyan Qu, Zhen Li, Yu Wang, Qun Yu, Shengqi Wang
BACKGROUND Long non-coding RNA SPRY4 intronic transcript 1 (lncRNA SPRY4-IT1) has been reported to be associated with the progression of several cancers, but its expression level in colorectal cancer (CRC) has rarely been reported. The purpose of this study was to estimate the clinical significance of SPRY4-IT1 in CRC. MATERIAL AND METHODS The relative expression levels of SPRY4-IT1 were detected by quantitative real-time polymerase chain reaction (qRT-PCR) in diseased tissues and the adjacent normal tissues of 106 CRC patients...
January 18, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
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