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lncRNA AND CANCER

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https://www.readbyqxmd.com/read/29456985/evaluation-of-mir-21-inhibition-and-its-impact-on-cancer-susceptibility-candidate-2-long-noncoding-rna-in-colorectal-cancer-cell-line
#1
Miganoosh Simonian, Mohammadreza Sharifi, Reza Nedaeinia, Meysam Mosallaie, Sharifeh Khosravi, Amir Avan, Majid Ghayour-Mobarhan, Hadi Bagheri, Rasoul Salehi
Background: Both microRNAs (miRNAs) and long noncoding RNAs (lncRNAs) have been shown to have a critical role in the regulation of cellular processes such as cell growth and apoptosis, as well as cancer progression and metastasis. lncRNAs are aberrantly expressed in many diseases including cancer. Although it is well known that miRNAs can target a large number of protein-coding genes, little is known whether miRNAs can also target lncRNAs. In the present study, we determine whether miR-21 can regulate lncRNA cancer susceptibility candidate 2 (CASC2) in colorectal cancer...
2018: Advanced Biomedical Research
https://www.readbyqxmd.com/read/29456724/long-noncoding-rna-blacat1-promotes-cell-proliferation-and-invasion-in-human-cervical-cancer
#2
Dan Shan, Yumin Shang, Tongxiu Hu
Cervical cancer is one of the leading causes of mortality in females worldwide. Predisposition to distant metastasis has reduced the prognosis of this malignancy, thus the identification of a novel agent for metastatic cervical cancer is required. Long noncoding RNAs (LncRNAs) have been reported to serve significant roles in human tumorigenesis. The present study aimed to investigate the effects of a newly discovered LncRNA bladder cancer associated transcript 1 (non-protein coding) (BLACAT1) on cell proliferation and metastasis in cervical cancer...
March 2018: Oncology Letters
https://www.readbyqxmd.com/read/29456181/an-ultraconserved-element-containing-lncrna-preserves-transcriptional-dynamics-and-maintains-esc-self-renewal
#3
Alessandro Fiorenzano, Emilia Pascale, Miriam Gagliardi, Sara Terreri, Mariarosaria Papa, Gennaro Andolfi, Marco Galasso, Guidantonio Malagoli Tagliazucchi, Cristian Taccioli, Eduardo Jorge Patriarca, Amelia Cimmino, Maria Rosaria Matarazzo, Gabriella Minchiotti, Annalisa Fico
Ultraconserved elements (UCEs) show the peculiar feature to retain extended perfect sequence identity among human, mouse, and rat genomes. Most of them are transcribed and represent a new family of long non-coding RNAs (lncRNAs), the transcribed UCEs (T-UCEs). Despite their involvement in human cancer, the physiological role of T-UCEs is still unknown. Here, we identify a lncRNA containing the uc.170+, named T-UCstem1, and provide in vitro and in vivo evidence that it plays essential roles in embryonic stem cells (ESCs) by modulating cytoplasmic miRNA levels and preserving transcriptional dynamics...
February 8, 2018: Stem Cell Reports
https://www.readbyqxmd.com/read/29455183/the-effect-of-lncrna-hotair-on-chemoresistance-of-ovarian-cancer-through-regulation-of-hoxa7
#4
Siwei Liu, Huajiang Lei, Fangyuan Luo, Yilin Li, Lan Xie
This study aimed at investigating the biological functions of long non-coding RNAs (lncRNAs) hox transcript antisense intergenic RNA (HOTAIR) in resistant ovarian cancer cells, exploring the regulation effect of HOTAIR on HOXA7, and investigating their influence on the chemosensitivity of ovarian cancer cells. Quantitative real-time polymerase chain reaction (qRT-PCR) was applied for the verification of HOTAIR expression in resistant and sensitive groups. How HOTAIR downregulation affected cell proliferation, migration and invasion, and apoptosis were determined using the MTT assay and the colony formation assay, the Transwell assay and flow cytometry analysis, respectively...
February 19, 2018: Biological Chemistry
https://www.readbyqxmd.com/read/29454790/increased-expression-of-the-long-non-coding-rna-linc01503-regulated-by-tp63-in-squamous-cell-carcinoma-and-effects-on-oncogenic-activities-of-cancer-cell-lines
#5
Jian-Jun Xie, Yan-Yi Jiang, Yuan Jiang, Chun-Quan Li, Lim-Mei Chee, Omer An, Anand Mayakonda, Ling-Wen Ding, Lin Long, Chun Sun, Le-Hang Lin, Li Chen, Jian-Yi Wu, Zhi-Yong Wu, Qi Cao, Wang-Kai Fang, Wei Yang, Stephen J Meltzer, Henry Yang, Melissa Fullwood, Li-Yan Xu, En-Min Li, De-Chen Lin, H Phillip Koeffler
BACKGROUND & AIMS: Long non-coding RNAs (lncRNAs) are expressed in tissue-specific pattern, but it is not clear how these are regulated. We aimed to identify squamous cell carcinoma (SCC)-specific lncRNAs and investigate mechanisms that control their expression and function. METHODS: We studied expression patterns and functions of 4 SCC-specific lncRNAs. We obtained 113 esophageal SCC (ESCC) and matched non-tumor esophageal tissues from a hospital in Shantou City, China, and performed quantitative reverse transcription PCR assays to measure expression levels of LINC01503...
February 15, 2018: Gastroenterology
https://www.readbyqxmd.com/read/29453409/a-potential-prognostic-long-noncoding-rna-signature-to-predict-recurrence-among-er-positive-breast-cancer-patients-treated-with-tamoxifen
#6
Kang Wang, Jie Li, Yong-Fu Xiong, Zhen Zeng, Xiang Zhang, Hong-Yuan Li
Limited predictable long noncoding RNA (lncRNA) signature was reported in tamoxifen resistance among estrogen receptor (ER)-positive breast cancer (BC) patients. The aim of this study was to identify and assess prognostic lncRNA signature to predict recurrence among ER-positive BC patients treated with tamoxifen. Cohorts from Gene Expression Omnibus (GEO) (n = 298) and The Cancer Genome Atlas (TCGA) (n = 160) were defined as training and validation cohort, respectively. BC relapse associated lnRNAs was identify within training cohort, and the predictable value of recurrence was assessed in both cohorts...
February 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29449541/long-noncoding-rna-meg3-suppresses-liver-cancer-cells-growth-through-inhibiting-%C3%AE-catenin-by-activating-pkm2-and-inactivating-pten
#7
Qidi Zheng, Zhuojia Lin, Jie Xu, Yanan Lu, Qiuyu Meng, Chen Wang, Yuxin Yang, Xiaoru Xin, Xiaonan Li, Hu Pu, Xin Gui, Tianming Li, Wujun Xiong, Dongdong Lu
Maternally expressed gene 3 (MEG3) encodes an lncRNA which is suggested to function as a tumor suppressor and has been showed to involve in a variety of cancers. Herein, our findings demonstrate that MEG3 inhibits the malignant progression of liver cancer cells in vitro and in vivo. Mechanistically, MEG3 promotes the expression and maturition of miR122 which targets PKM2. Therefore, MEG3 decreases the expression and nuclear location of PKM2 dependent on miR122. Furthermore, MEG3 also inhibits CyclinD1 and C-Myc via PKM2 in liver cancer cells...
February 15, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29448242/the-lncrna-epel-promotes-lung-cancer-cell-proliferation-through-e2f-target-activation
#8
Seong-Min Park, Eun-Young Choi, Dong-Hyuck Bae, Hyun Ahm Sohn, Seon-Young Kim, Youn-Jae Kim
BACKGROUND/AIMS: Recent studies have revealed that many long non-coding RNAs (lncRNAs) play oncogenic or tumor-suppressive roles in various cancers. Lung cancer is the leading cause of cancer-related death worldwide, and many lung cancer patients frequently relapse after surgery, even those in the early stages. However, the oncogenic or tumor-suppressive roles and clinical implications of lncRNAs in lung cancer have not been fully elucidated. METHODS: The association between an E2F-mediated cell proliferation enhancing lncRNA (EPEL) expression and lung cancer patient survival was accessed using public microarray data with clinical information...
February 9, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29443889/alteration-of-epigenetic-regulation-by-long-noncoding-rnas-in-cancer
#9
REVIEW
Mariangela Morlando, Alessandro Fatica
Long noncoding RNAs (lncRNAs) are important regulators of the epigenetic status of the human genome. Besides their participation to normal physiology, lncRNA expression and function have been already associated to many diseases, including cancer. By interacting with epigenetic regulators and by controlling chromatin topology, their misregulation may result in an aberrant regulation of gene expression that may contribute to tumorigenesis. Here, we review the functional role and mechanisms of action of lncRNAs implicated in the aberrant epigenetic regulation that has characterized cancer development and progression...
February 14, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29441951/lncrna-hulc-promotes-epithelial-and-smooth-muscle-like-differentiation-of-adipose-derived-stem-cells-by-upregulation-of-bmp9
#10
Yongwei Li, Zhengfei Shan, Bin Yang, Diandong Yang, Changping Men, Yuanshan Cui, Jitao Wu
AIMS: Adipose-derived stem cells (ADSCs), a source of mesenchymal stem cells, are able to differentiate into numerous cell lineages, including epithelial and smooth muscle cells. The use of ADSCs in tissue engineering technology has become the most promising therapeutic approach for urethral reconstruction. This study aimed to explore the effect of lncRNA highly upregulated in liver cancer (HULC) on the induction of ADSCs to differentiate into epithelial and smooth-muscle-like cells. METHODS: ADSCs were isolated from a male dog, and the expression of HULC in ADSCs was overexpressed by transfection with HULC expressing vector lentivirus...
January 2, 2018: Die Pharmazie
https://www.readbyqxmd.com/read/29441950/long-noncoding-rna-ccal-promotes-gastric-cancer-cell-proliferation-and-migration-in-a-myc-dependent-way
#11
Yuqiang Shan, Wencheng Kong, Akao Zhu, Panpan Yu, Qi Xie, Sixin Zheng, Huicheng Jin
AIMS: Long non-coding RNAs (lncRNAs) play key roles in cancers, yet their potential molecular mechanisms are not well understood. The objective of this study is to examine the expression, biological functions and mechanism of lncRNA CCAL in gastric cancer (GC). METHODS: MTT and Colony formation assay were used to detect cell proliferation and the colony formation ability of gastric cancer cells. Wound healing, Migration, and invasion assay were respectively used to explore the migration, and invasion in gastric cancer cell lines...
January 2, 2018: Die Pharmazie
https://www.readbyqxmd.com/read/29441937/antisense-lncrna-as-slc7a11-suppresses-epithelial-ovarian-cancer-progression-mainly-by-targeting-slc7a11
#12
Jinjin Yuan, Zongwen Liu, Rui Song
Antisense lncRNAs play a key role in the progression of multiple cancers. Thus, it is important to elucidate the function and mechanism of antisense lncRNAs, which may play a role in the treatment of epithelial ovarian cancer (EOC). In the current study, for the first time, we showed that the level of As-SLC7A11 was markedly reduced in EOC cancer tissues and cell lines compared with those of normal control. Further study showed that silencing of As-SLC7A11 could enhance ovarian cancer cell migration. In comparison, overexpression of As-SLC7A11 markedly induced ovarian cancer cell apoptosis...
July 3, 2017: Die Pharmazie
https://www.readbyqxmd.com/read/29441885/reduced-lncrna-aim-enhances-the-malignant-invasion-of-triple-negative-breast-cancer-cells-mainly-by-activating-wnt-%C3%AE-catenin-mtor-pi3k-signaling
#13
Li Liu, Dehong Yu, Hong Shi, Jie Li, Lingkai Meng
Increasing evidence has suggested the important role of lncRNAs in the progression of triple-negative breast cancer (TNBC). In the current study, we first demonstrated that the expression of Airn was reduced in TNBC tissues and cells. Our data showed that the level of Airn was reduced in TNBC tissues and cell lines compared with that of normal control. Furthermore, silencing of Airn markedly enhanced MDA-MB-231 cell migration. Meanwhile, knockdown of Airn significantly increased MDA-MB-231 cell invasion. Western blot analysis showed that knockdown of Airn markedly enhanced the activation of Wnt/β-catenin/mTOR/PI3K in both MDA-MB-231 cells...
October 1, 2017: Die Pharmazie
https://www.readbyqxmd.com/read/29441192/knockdown-of-lncrna-mapt-as1-inhibites-proliferation-and-migration-and-sensitizes-cancer-cells-to-paclitaxel-by-regulating-mapt-expression-in-er-negative-breast-cancers
#14
Yiyuan Pan, Yiqi Pan, Yue Cheng, Fan Yang, Zhihan Yao, Ouchen Wang
Background: MAPT-AS1, a long non-coding RNA, has not been reported in any previous research about its function in cancers. In this study, we investigated the role of MAPT-AS1 in the progression and paclitaxel resistance in breast cancer, and the regulation between MAPT-AS1 and its natural comparable sense transcripts MAPT. Methods: We analysed the breast cancer patients' clinical information and explored the function of MAPT-AS1 by gain- and loss-of function assays in vitro and in vivo...
2018: Cell & Bioscience
https://www.readbyqxmd.com/read/29439314/effects-of-malat1-on-proliferation-and-apo-ptosis-of-human-non-small-cell-lung-cancer-a549-cells-in-vitro-and-tumor-xenograft-growth-in-vivo-by-modulating-autophagy
#15
Jun Ma, Kaiming Wu, Kuanzhi Liu, Rong Miao
OBJECTIVE: To explore the ability of MALAT1 to influence non-small cell lung cancer (NSCLC) A549 cells in vitro and tumor xenograft growth in vivo by modulating autophagy. METHODS: LncRNA MALAT-1 in normal HBE cells and human NSCLC cells was measured. A549 cells were treated with si-MALAT-1, negative control and si-MALAT-1 + rapamycin. The mRNA levels of MALAT-1, P62 and LC3 was determined by the qRT-PCR and the protein levels of autophagy-related proteins by the western blotting...
January 29, 2018: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/29439313/expression-analysis-of-afap1-as1-and-afap1-in-breast-cancer
#16
Ali Dianatpour, Sepideh Faramarzi, Lobat Geranpayeh, Reza Mirfakhraie, Elahe Motevaseli, Soudeh Ghafouri-Fard
Long non-coding RNAs (lncRNA) constitute a significant percentage of RNAs with no translation to proteins. Their participation in fundamental aspects of cell physiology as well as their dysregulation in a number of pathologic conditions such as cancer have been documented. Among lncRNAs is actin filament associated protein 1 antisense RNA1 (AFAP1-AS1) whose elevated expression levels have been demonstrated in different cancers. In the in the present study we evaluated expression levels of AFAP1-AS1 and its antisense protein coding gene AFAP1 in breast cancer samples compare with adjacent non-cancerous tissues (ANCTs) as well as breast cancer cell lines with special focus on the assessment of the association between their transcript levels and patients' clinicopathological data...
January 29, 2018: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/29439310/lncrna-ab073614-induces-epithelial-mesenchymal-transition-of-colorectal-cancer-cells-via-regulating-the-jak-stat3-pathway
#17
Jinfang Xue, Liya Liao, Fang Yin, Haoyu Kuang, Xiaojun Zhou, Yanan Wang
BACKGROUND: LncRNAs are involved in the metastasis and recurrence of human tumors, including colorectal cancer (CRC). We previously reported that lncRNA AB073614 promotes tumor proliferation and metastasis and predicted a poor clinical outcome of CRC patients. Herein, we investigated the underlying mechanism of lncRNA AB073614-related metastasis in CRC. MATERIAL AND METHODS: The expression of lncRNA AB073614 in CRC tissues were evaluated by quantitative real-time PCR (qRT-PCR)...
January 26, 2018: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/29436686/downregulation-of-the-long-non-coding-rna-xloc_010588-inhibits-the-invasion-and-migration-of-colorectal-cancer
#18
Yue Li, Lin Zhao, Yining Zhang, Lin Guan, Huijing Zhang, Huan Zhou, Tong Gao, Peng Miao, Mingjun Sun
Long non-coding RNAs (lncRNAs) have emer-ged as major players in many biological and pathological processes; however, investigation into the function of lncRNAs in the development and progression of cancer is in its infancy. Therefore, clarification of the mechanism by which cancer‑related lncRNAs function is of critical importance in research on tumorigenesis. It has been demonstrated that the lncRNA XLOC_010588 is expressed at a low level in cervical cancer, and that this has significant impact on the proliferation of cervical cancer cells...
February 12, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29436635/differential-expression-profiles-of-long-noncoding-rna-and-mrna-in-colorectal-cancer-tissues-from-patients-with-lung-metastasis
#19
Ruo Shu, Yu Xu, Yan Tian, Yujian Zeng, Liang Sun, Fangyou Gong, Yi Lei, Kunhua Wang, Huayou Luo
Lungs are the most common extra‑abdominal site of metastasis of colorectal cancer (CRC), in which long noncoding RNA (lncRNA) may serve a role. In the present study, a high‑throughput microarray assay was performed to detect lncRNA expression and identify novel targets for further study of lung metastasis in CRC. In the CRC tissues from patients with lung metastasis, 7,632 lncRNA (3,574 upregulated and 4,058 downregulated) and 6,185 mRNA (3,394 upregulated and 2,791 downregulated) were detected to be differentially expressed with a fold change ≥2 and P<0...
February 8, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29436619/a-six-long-non-coding-rna-signature-predicts-prognosis-in-melanoma-patients
#20
Shuocheng Yang, Jianguo Xu, Xuan Zeng
The aim of this study was to identify long non-coding RNAs (lncRNAs) which may prove useful for risk-classifying patients with melanoma. For this purpose, based on a dataset from The Cancer Genome Atlas (TCGA), we selected and analyzed samples from melanoma stages I, II, III and IV, from which differentially expressed lncRNAs were identified. The lncRNAs were classified using two-way hierarchical clustering analysis and analysis of support vector machine (SVM), followed by Kaplan-Meier survival analysis. The prognostic capacity of the signature was verified on an independent dataset...
February 7, 2018: International Journal of Oncology
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