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https://www.readbyqxmd.com/read/29231252/lncrna-ccat1-contributes-to-the-growth-and-invasion-of-gastric-cancer-via-targeting-mir-219-1
#1
Yanfeng Li, Guanyu Zhu, Yan Ma, Hongyan Qu
Gastric cancer (GC) is one of the most malignant tumors that seriously threaten to human health. Increased reports indicated that long non-coding RNAs (lncRNAs) were associated with GC. This study aims to investigate the regulatory role of colon cancer associated transcript-1 (CCAT1) in GC. The results exhibited that CCAT1 was higher expressed in 57 GC tissue samples than in 57 paired adjacent normal tissue samples. The expression of CCAT1 was also increased in GC cell lines (MKN45, Hs746T and SGC-7901) compared with gastric epithelial cell line GES-1...
December 12, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29228867/long-non-coding-rna-ccat1-promotes-multiple-myeloma-progression-by-acting-as-a-molecular-sponge-of-mir-181a-5p-to-modulate-hoxa1-expression
#2
Li Chen, Ning Hu, Chao Wang, Hongmian Zhao, Yueli Gu
Multiple myeloma (MM) is the second most common hematological cancer all over the world. Long non-coding RNA (lncRNA) colon cancer associated transcript-1 (CCAT1) has been reported to play important roles in the development and progression of multiple human malignancies. However, little is known about its functional role and molecular mechanism in MM. The aim of this study was to investigate the clinical and biological significance of CCAT1 in MM. Our data showed that the relative expression levels of CCAT1 were significantly upregulated in MM tissues and cell lines compared with healthy donors and normal plasma cells (nPCs)...
December 11, 2017: Cell Cycle
https://www.readbyqxmd.com/read/29226325/lncrna-malat1-induces-colon-cancer-development-by-regulating-mir-129-5p-hmgb1-axis
#3
Ying Jie, Haijian Zhao
Recent studies have exhibited significant roles of lncRNAs in various tumors' development, including colon cancer. Our study focused on the biological roles of lncRNA MALAT1 in colon cancer. In our study, it was demonstrated that MALAT1 was upregulated in human colon cancer cell lines including Lovo, HCT116, SW480 and HT29 cells compared to the normal human intestinal epithelial HIEC cells. Moreover, we observed that miR-129-5p was downregulated in colon cancer cells with a significant increase of HMGB1 expression...
December 11, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29225578/curcumin-suppresses-the-colon-cancer-proliferation-by-inhibiting-wnt-%C3%AE-catenin-pathways-via-mir-130a
#4
Huiqiang Dou, Renhui Shen, Jianxin Tao, Longchang Huang, Haoze Shi, Hang Chen, Yixin Wang, Tong Wang
Curcumin exhibits anti-tumor effects in several cancers, including colorectal carcinoma (CRC), but the detailed mechanisms are still unclear. Here we studied the mechanisms underlying the anti-tumor effect of curcumin in colon cancer cells. SW480 cells were injected into mice to establish the xenograft tumor model, followed by evaluation of survival rate with the treatment of curcumin. The expression levels of β-catenin, Axin and TCF4 were measured in the SW480 cells in the absence or presence of curcumin...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29222745/mir-26a-functions-as-a-tumor-suppressor-in-ambient-particulate-matter-bound-metal-triggered-lung-cancer-cell-metastasis-by-targeting-lin28b-il6-stat3-axis
#5
Yan-Yang Lu, Yi Lin, Dong-Xiao Ding, Shu Su, Qiao-Qiao Chi, You-Chi Zhang, Jian Sun, Xu Zhang, Hui-Min Zhu, Qian-Sheng Huang, Yu-Lang Chi, Guo-Zhu Ye, Shu Tao, Si-Jun Dong
Exposure to ambient particulate matter (PM) has been linked to the increasing incidence and mortality of lung cancer, but the principal toxic components and molecular mechanism remain to be further elucidated. In this study, human lung adenocarcinoma A549 cells were treated with serial concentrations of water-extracted PM10 (WE-PM10) collected from Beijing, China. Our results showed that exposure to 25 and 50 μg/ml of WE-PM10 for 48 h significantly suppressed miR-26a to upregulate lin-28 homolog B (LIN28B), and in turn activated interleukin 6 (IL6) and signal transducer and activator of transcription 3 (STAT3) in A549 cells, subsequently contributing to enhanced epithelial-mesenchymal transition and accelerated migration and invasion...
December 8, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/29221194/altered-microrna-profiles-during-early-colon-adenoma-progression-in-a-porcine-model-of-familial-adenomatous-polyposis
#6
Monika Stachowiak, Tatiana Flisikowska, Stefan Bauersachs, Carolin Perleberg, Hubert Pausch, Marek Switonski, Alexander Kind, Dieter Saur, Angelika Schnieke, Krzysztof Flisikowski
MicroRNAs are dysregulated in various cancers including colorectal cancer, and are potential useful biomarkers of disease development. We used next generation sequencing to investigate miRNA expression profiles in low- and high-grade intraepithelial dysplastic polyps from pigs carrying a mutation in the adenomatous polyposis coli tumour suppressor (APC1311 , orthologous to human APC1309 ) that model an inherited predisposition to colorectal cancer, familial adenomatous polyposis. We identified several miRNAs and their isomiRs significantly (P < 0...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29207676/circular-rna-hsa_circ_000984-promotes-colon-cancer-growth-and-metastasis-by-sponging-mir-106b
#7
Xiao-Wu Xu, Bo-An Zheng, Zhi-Ming Hu, Zhen-Yuan Qian, Chao-Jie Huang, Xi-Qiang Liu, Wei-Ding Wu
Circular RNAs (circRNAs) as a novel type of noncoding RNAs (ncRNAs) are widely studied in the development of human various diseases, including cancer. Here, we found circular RNA hsa_circ_000984 encoded by the CDK6 gene was remarkably upregulated in the tissues of colorectal cancer (CRC) patients and in the CRC cell lines. Moreover, high expression level of hsa_circ_000984 was significantly associated with advanced colorectal cancer. Further analysis revealed that hsa_circ_000984 knockdown could inhibit cell proliferation, migration, invasion in vitro and tumor formation in vivo in CRC cell lines...
October 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/29206819/mechanisms-of-inactivation-of-the-tumour-suppressor-gene-rhoa-in-colorectal-cancer
#8
Higinio Dopeso, Paulo Rodrigues, Josipa Bilic, Sarah Bazzocco, Fernando Cartón-García, Irati Macaya, Priscila Guimarães de Marcondes, Estefanía Anguita, Marc Masanas, Lizbeth M Jiménez-Flores, Águeda Martínez-Barriocanal, Rocío Nieto, Miguel F Segura, Simo Schwartz, John M Mariadason, Diego Arango
BACKGROUND: Reduced RHOA signalling has been shown to increase the growth/metastatic potential of colorectal tumours. However, the mechanisms of inactivation of RHOA signalling in colon cancer have not been characterised. METHODS: A panel of colorectal cancer cell lines and large cohorts of primary tumours were used to investigate the expression and activity of RHOA, as well as the presence of RHOA mutations/deletions and promoter methylation affecting RHOA. Changes in RHOA expression were assessed by western blotting and qPCR after modulation of microRNAs, SMAD4 and c-MYC...
December 5, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/29190974/mir-3613-3p-affects-cell-proliferation-and-cell-cycle-in-hepatocellular-carcinoma
#9
Donghui Zhang, Enqin Liu, Jian Kang, Xin Yang, Hong Liu
Hepatocellular carcinoma (HCC) is one of the most common types of malignant tumors with poor sensitivity to chemotherapy drugs and poor prognosis among patients. In the present study, we downloaded the original data from the Gene Expression Omnibus and compared gene expression profiles of liver cancer cells in patients with HCC with those of colon epithelial cells of healthy controls to identify differentially expressed genes (DEGs). After filtering target microRNAs (miRNA) from core DEGs, we cultured HepG2 cells in vitro, knocked down the miRNA and core mRNAs, and analyzed the effects...
November 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29190961/long-noncoding-rna-ccat1-functions-as-a-cerna-to-antagonize-the-effect-of-mir-410-on-the-down-regulation-of-itpkb-in-human-hct-116-and-hct-8-cells
#10
Bo Li, Chong Shi, Jingming Zhao, Bai Li
Colorectal cancer is one of the most common malignancies, which has seriously affected people's health. Abnormal expression of long non-coding RNAs and microRNAs are closely related to the process of occurrence, development, invasion and metastasis of colorectal cancer. However, the effect of lnc CCAT1 on human HCT-116/HCT-8 cells and its potential mechanism were investigated. In present study, differential expression of CCAT1, miR-410 and ITPKB were detected in colon cancer tissues and adjacent parts. Then the prediction programs were applied to predict the target genes of miR-410...
November 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29187262/novel-circulating-micrornas-expression-profile-in-colon-cancer-a-pilot-study
#11
Ya-Nan Wang, Zhao-Hua Chen, Wei-Chang Chen
PURPOSE: To identify the expression profile of novel microRNAs (miRNAs) in colon cancer and evaluate their clinical applicability. METHODS: Differences in the expression of serum miRNAs in patients with colon cancer and healthy controls were identified using miRNA microarrays. Differentially expressed miRNAs were verified via real-time polymerase chain reaction (PCR) using sera from 50 patients with colon cancer and 44 healthy controls. These miRNAs were also verified in a double-blind validation experiment using sera from 30 patients with colon cancer, 30 patients with colonic polyps, and 30 healthy controls...
November 29, 2017: European Journal of Medical Research
https://www.readbyqxmd.com/read/29172295/evaluation-of-mir-224-mir-215-and-mir-143-as-serum-biomarkers-for-hcv-associated-hepatocellular-carcinoma
#12
Samah Mamdouh, Fatma Khorshed, Tarek Aboushousha, Hussam Hamdy, Ayman Diab, Mohamed Seleem, Mohamed Saber
HCV induced hepatitis and hepatocellular carcinoma as its sequel are major health problems world-wide and especially in Egypt. For diagnosis and during treatment of liver diseases, liver functions are monitored through determination of serum levels of liver enzymes and α-fetoprotein although the obtained information is generally not sufficient for either early detection of hepatic insult or effective follow up of therapeutic effects. More sensitive biomarkers may help to achieve these goals. MiRNAs are small non-coding RNAs that have an important role in gene expression and regulation...
November 26, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/29164578/mir-590-3p-promotes-colon-cancer-cell-proliferation-via-wnt-%C3%AE-catenin-signaling-pathway-by-inhibiting-wif1-and-dkk1
#13
Z-Y Feng, X-H Xu, D-Z Cen, C-Y Luo, S-B Wu
OBJECTIVE: Colon cancer is one of the most common and deadly types of gastrointestinal tumor. Despite progressive treatments, the patient prognosis has not been improved effectively. MATERIALS AND METHODS: Expression of miRNA and mRNA were tested by Realtime PCR. Cell cycle was detected by flow cytometry. Cell viability was evaluated by MTT assay. Cell spheroid formation was determined by colony assay. Wnt signaling pathway activity was evaluated by TOP/FOP ratio...
November 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29164556/the-effect-of-mir-224-down-regulation-on-sw80-cell-proliferation-and-apoptosis-and-weakening-of-adm-drug-resistance
#14
C-Q Liang, Y-M Fu, Z-Y Liu, B-R Xing, Y Jin, J-L Huang
OBJECTIVE: Glycogen synthase kinase-3β (GSK-3β) can phosphorylate and degrade β-catenin, and negatively regulates Wnt/β-catenin signal pathway. MiR-224 up-regulation is associated with colorectal cancer (CRC). Bioinformatics analysis showed complementary binding sites between miR-224 and GSK-3β. This study investigated if miR-224 plays a role in mediating GSK-3β expression, Wnt/β-catenin pathway activity, CRC cell proliferation, apoptosis as well as drug sensitivity of Adriamycin (ADM)...
November 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29163801/long-non-coding-rna-ccat1-modulates-neuropathic-pain-progression-through-sponging-mir-155
#15
Lidong Dou, Hongqi Lin, Kaiwei Wang, Guosong Zhu, Xuli Zou, Enqiang Chang, Yongfeng Zhu
Neuropathic pain is caused by dysfunction or primary injury of the somatosensory nervous system. Long noncoding RNAs (lncRNAs) play important roles in the development of neuropathic pain. However, the effects of lncRNA colon cancer associated transcript-1 (CCAT1) in neuropathic pain have not been reported. The model of bilateral sciatic nerve chronic constriction injuries (bCCI) is regarded as long-lasting mechanical hypersensitivity and cold allodynia, which is the representative symptom in the human subjects suffering from the neuropathic pain...
October 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/29152124/identification-of-a-sixteen-microrna-signature-as-prognostic-biomarker-for-stage-ii-and-iii-colon-cancer
#16
Havjin Jacob, Luka Stanisavljevic, Kristian Eeg Storli, Kjersti E Hestetun, Olav Dahl, Mette P Myklebust
Despite advances in colon cancer research and novel therapies, high risk of recurrence remains a major challenge. This study reports miRNA expression profiling as a biomarker for the prognosis of TNM stage II and III colon cancer. Fresh frozen biopsies from the study cohort (N=111) were analyzed for miRNA by RT-qPCR and LASSO regression analysis was used to build a classifier of miRNAs. The prognostic accuracy was tested and the classifier was validated in an independent colon cohort (TCGA-COAD, N=209). The LASSO regression analysis identified a 16-miRNA signature including miR-143-5p, miR-27a-3p, miR-31-5p, miR-181a-5p, miR-30b-5p, miR-30d-5p, miR-146a-5p, miR-23a-3p, miR-150-5p, miR-210-3p, miR-25-3p, miR-196a-5p, miR-148a-3p, miR-222-3p, miR-30c-5p and miR-223-3p...
October 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/29137689/microrna-433-represses-proliferation-and-invasion-of-colon-cancer-cells-by-targeting-homeobox-a1
#17
Heming Li, Junfeng Li, Taisheng Yang, Shuwen Lin, Heng Li
The aberrant expression of miR-433 has been validated in some types of cancers. However, the expression profile and thebiological function of miR-433 on colon cancer are still elusive. This study was designed to investigate the function of miR-433 on proliferation and invasion of colon cancer cell. We detected the expression of miR-433 in colon cancer tissues, adjacent normal tissues and cell lines. CCK8 and transwell assays were performed to explore the impact of miR-433 on colon cancer cell proliferation and invasion...
October 3, 2017: Oncology Research
https://www.readbyqxmd.com/read/29137387/infrequently-expressed-mirnas-influence-survival-after-diagnosis-with-colorectal-cancer
#18
Martha L Slattery, Andrew J Pellatt, Frances Y Lee, Jennifer S Herrick, Wade S Samowitz, John R Stevens, Roger K Wolff, Lila E Mullany
Half of miRNAs expressed in colorectal tissue are expressed < 50% of the population. Many infrequently expressed miRNAs have low levels of expression. We hypothesize that less frequently expressed miRNAs, when expressed at higher levels, influence both disease stage and survival after diagnosis with colorectal cancer (CRC); low levels of expression may be background noise. We examine 304 infrequently expressed miRNAs in 1893 population-based cases of CRC with paired carcinoma and normal mucosa miRNA profiles...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29137351/microrna-200-associated-with-metastatic-breast-cancer-promotes-traits-of-mammary-luminal-progenitor-cells
#19
Lourdes Sánchez-Cid, Mònica Pons, Juan José Lozano, Nuria Rubio, Marta Guerra-Rebollo, Aroa Soriano, Laia Paris-Coderch, Miquel F Segura, Raquel Fueyo, Judit Arguimbau, Erika Zodda, Raquel Bermudo, Immaculada Alonso, Xavier Caparrós, Marta Cascante, Arash Rafii, Yibin Kang, Marian Martínez-Balbás, Stephen J Weiss, Jerónimo Blanco, Montserrat Muñoz, Pedro L Fernández, Timothy M Thomson
MicroRNAs are critical regulators of gene networks in normal and abnormal biological processes. Focusing on invasive ductal breast cancer (IDC), we have found dysregulated expression in tumor samples of several microRNAs, including the miR-200 family, along progression from primary tumors to distant metastases, further reflected in higher blood levels of miR-200b and miR-7 in IDC patients with regional or distant metastases relative to patients with primary node-negative tumors. Forced expression of miR-200s in MCF10CA1h mammary cells induced an enhanced epithelial program, aldehyde dehydrogenase (ALDH) activity, mammosphere growth and ability to form branched tubuloalveolar structures while promoting orthotopic tumor growth and lung colonization in vivo...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29134398/micrornas-and-their-role-for-t-stage-determination-and-lymph-node-metastasis-in-early-colon-carcinoma
#20
Melanie Rammer, Gerald Webersinke, Sophie Haitchi-Petnehazy, Eva Maier, Hubert Hackl, Pornpimol Charoentong, Theodora Malli, Maria Steinmair, Andreas L Petzer, Holger Rumpold
Worldwide, colon cancer is among the most common cancer entities. Understanding the molecular background is the key to enable accurate stage determination, which is crucial to assess optimal therapy options. The search for preoperative biomarkers is ongoing. In recent years, several studies have proposed a diagnostic and prognostic role for miRNAs in cancer. Aim of this study was to evaluate miRNA expression patterns correlating with tumor stage, especially lymph node metastasis, in primary colon carcinoma tissue...
November 13, 2017: Clinical & Experimental Metastasis
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