scholarly journals The emerging role of super enhancer-derived noncoding RNAs in human cancer

Theranostics ◽  
2020 ◽  
Vol 10 (24) ◽  
pp. 11049-11062 ◽  
Author(s):  
Yutong Wang ◽  
Hui Nie ◽  
Xiaoyun He ◽  
Zhiming Liao ◽  
Yangying Zhou ◽  
...  
Keyword(s):  
Human Cancer ◽  
Noncoding Rnas ◽  
Super Enhancer

scholarly journals The emerging role of microRNAs and long noncoding RNAs in drug resistance of hepatocellular carcinoma

2019 ◽  
Vol 18 (1) ◽  
Author(s):  
Ling Wei ◽  
Xingwu Wang ◽  
Liyan Lv ◽  
Jibing Liu ◽  
Huaixin Xing ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Drug Resistance ◽  
Human Cancer ◽  
Noncoding Rnas ◽  
Circular Rna ◽  
Long Noncoding Rnas ◽  
Protein Coding ◽  
Multiple Tumor ◽  
Nucleolar Rnas

Abstract Hepatocellular carcinoma (HCC) is the fifth most common malignancy worldwide and the second most lethal human cancer. A portion of patients with advanced HCC can significantly benefit from treatments with sorafenib, adriamycin, 5-fluorouracil and platinum drugs. However, most HCC patients eventually develop drug resistance, resulting in a poor prognosis. The mechanisms involved in HCC drug resistance are complex and inconclusive. Human transcripts without protein-coding potential are known as noncoding RNAs (ncRNAs), including microRNAs (miRNAs), small nucleolar RNAs (snoRNAs), long noncoding RNAs (lncRNAs) and circular RNA (circRNA). Accumulated evidences demonstrate that several deregulated miRNAs and lncRNAs are important regulators in the development of HCC drug resistance which elucidates their potential clinical implications. In this review, we summarized the detailed mechanisms by which miRNAs and lncRNAs affect HCC drug resistance. Multiple tumor-specific miRNAs and lncRNAs may serve as novel therapeutic targets and prognostic biomarkers for HCC.

scholarly journals The role of let-7 in cell differentiation and cancer

2010 ◽  
Vol 17 (1) ◽  
pp. F19-F36 ◽  
Author(s):  
Benjamin Boyerinas ◽  
Sun-Mi Park ◽  
Annika Hau ◽  
Andrea E Murmann ◽  
Marcus E Peter
Keyword(s):  
Drug Sensitivity ◽  
Normal Development ◽  
Human Cancer ◽  
Therapeutic Option ◽  
Noncoding Rnas ◽  
Current Evidence ◽  
Small Noncoding Rnas ◽  
Development And Differentiation ◽  
The Relationship

MicroRNAs (miRNAs or miRs) are small noncoding RNAs capable of regulating gene expression at the translational level. Current evidence suggests that a significant portion of the human genome is regulated by microRNAs, and many reports have demonstrated that microRNA expression is deregulated in human cancer. The let-7 family of microRNAs, first discovered in Caenorhabditis elegans, is functionally conserved from worms to humans. The human let-7 family contains 13 members located on nine different chromosomes, and many human cancers have deregulated let-7 expression. A growing body of evidence suggests that restoration of let-7 expression may be a useful therapeutic option in cancers, where its expression has been lost. In this review, we discuss the role of let-7 in normal development and differentiation, and provide an overview of the relationship between deregulated let-7 expression and tumorigenesis. The regulation of let-7 expression, cancer-relevant let-7 targets, and the relationship between let-7 and drug sensitivity are highlighted.

Melatonin and chromatin

2019 ◽  
Vol 2 (1) ◽  
pp. 67-93 ◽  
Author(s):  
Ruediger Hardeland
Keyword(s):  
Gene Expression ◽  
Chromatin Remodeling ◽  
Cpg Islands ◽  
Noncoding Rnas ◽  
Sirtuin 1 ◽  
Light At Night ◽  
Control Of Gene Expression ◽  
Super Enhancer ◽  
Toxin Exposure

Melatonin affects chromatin remodeling, thereby activating or silencing specific genes and, presumably, also by modulating circadian-mediated changes in chromatin structure. Melatonin has been shown to exert effects on chromatin under conditions of toxin exposure, treatment with other hormones such as glucocorticoids or leptin, in cancer, and during developmental processes. Most of the documented actions concern histone modifications or their reversal that facilitate or prevent nucleosome eviction. Less information is available on DNA methylation or demethylation at regulatory CpG islands. To date, this has been mainly studied under conditions of early development, occasionally concerning seasonality or shiftwork with light at night. Another emerging field, which is still insufficiently studied, concerns regulation via DNA-interacting noncoding RNAs, in particular, super-enhancer lncRNAs. Although the direct information on actions by melatonin is widely missing, this field promises to become important, as numerous RNAs of this type have been shown to be rhythmically expressed. The circadian aspect of melatonin’s role in chromatin remodeling and control of gene expression deserves future attention. This includes the role of sirtuin 1, which participates in the circadian machinery and apparently mediates several effects of melatonin that are suppressed by sirtuin inhibitors or sirtuin 1 knockdown. 

scholarly journals Epi-miRNAs: Regulators of the Histone Modification Machinery in Human Cancer

2022 ◽  
Vol 2022 ◽  
pp. 1-22
Author(s):  
Deniz Mortazavi ◽  
Behnoush Sohrabi ◽  
Meysam Mosallaei ◽  
Ziba Nariman-Saleh-Fam ◽  
Milad Bastami ◽  
...  
Keyword(s):  
Histone Modification ◽  
Cell Fate ◽  
Target Genes ◽  
Human Cancer ◽  
Noncoding Rnas ◽  
Fine Tuning ◽  
Small Noncoding Rnas ◽  
Histone Modifiers ◽  
Histone Modifying Enzymes

Cancer is a leading cause of death and disability worldwide. Epigenetic deregulation is one of the most critical mechanisms in carcinogenesis and can be classified into effects on DNA methylation and histone modification. MicroRNAs are small noncoding RNAs involved in fine-tuning their target genes after transcription. Various microRNAs control the expression of histone modifiers and are involved in a variety of cancers. Therefore, overexpression or downregulation of microRNAs can alter cell fate and cause malignancies. In this review, we discuss the role of microRNAs in regulating the histone modification machinery in various cancers, with a focus on the histone-modifying enzymes such as acetylases, deacetylases, methyltransferases, demethylases, kinases, phosphatases, desumoylases, ubiquitinases, and deubiquitinases. Understanding of microRNA-related aberrations underlying histone modifiers in pathogenesis of different cancers can help identify novel therapeutic targets or early detection approaches that allow better management of patients or monitoring of treatment response.

ACE2/Angiotensin-(1-7)/Mas Receptor Axis in Human Cancer: Potential Role for Pediatric Tumors

2020 ◽  
Vol 21 (9) ◽  
pp. 892-901 ◽  
Author(s):  
Ana Luiza Ataide Carneiro de Paula Gonzaga ◽  
Vitória Andrade Palmeira ◽  
Thomas Felipe Silva Ribeiro ◽  
Larissa Braga Costa ◽  
Karla Emília de Sá Rodrigues ◽  
...  
Keyword(s):  
Clinical Trials ◽  
Angiotensin Ii ◽  
Pediatric Cancer ◽  
Pediatric Patients ◽  
Human Cancer ◽  
Experimental Studies ◽  
At1 Receptor ◽  
Pediatric Tumors ◽  
Mas Receptor

Background: Pediatric tumors remain the highest cause of death in developed countries. Research on novel therapeutic strategies with lesser side effects is of utmost importance. In this scenario, the role of Renin-Angiotensin System (RAS) axes, the classical one formed by angiotensinconverting enzyme (ACE), Angiotensin II and AT1 receptor and the alternative axis composed by ACE2, Angiotensin-(1-7) and Mas receptor, have been investigated in cancer. Objective: This review aimed to summarize the pathophysiological role of RAS in cancer, evidence for anti-tumor effects of ACE2/Angiotensin-(1-7)/Mas receptor axis and future therapeutic perspectives for pediatric cancer. Methods: Pubmed, Scopus and Scielo were searched in regard to RAS molecules in human cancer and pediatric patients. The search terms were “RAS”, “ACE”, “Angiotensin-(1-7)”, “ACE2”, “Angiotensin II”, “AT1 receptor”, “Mas receptor”, “Pediatric”, “Cancer”. Results: Experimental studies have shown that Angiotensin-(1-7) inhibits the growth of tumor cells and reduces local inflammation and angiogenesis in several types of cancer. Clinical trials with Angiotensin-( 1-7) or TXA127, a pharmaceutical grade formulation of the naturally occurring peptide, have reported promising findings, but not enough to recommend medical use in human cancer. In regard to pediatric cancer, only three articles that marginally investigated RAS components were found and none of them evaluated molecules of the alternative RAS axis. Conclusion: Despite the potential applicability of Angiotensin-(1-7) in pediatric tumors, the role of this molecule was never tested. Further clinical trials are necessary, also including pediatric patients, to confirm safety and efficiency and to define therapeutic targets.

The Role of Sensing Peptides in the Cross-talk between Microbiota and Human Cancer Cells

2018 ◽  
Vol 18 (18) ◽  
pp. 1567-1571
Author(s):  
Anna Lucia Tornesello ◽  
Luigi Buonaguro ◽  
Maria Lina Tornesello ◽  
Franco M. Buonaguro
Keyword(s):  
Cancer Cells ◽  
Cross Talk ◽  
Human Cancer ◽  
Human Cancer Cells ◽  
The Cross

scholarly journals Epigenetic regulation in human cancer: the potential role of epi-drug in cancer therapy

2020 ◽  
Vol 19 (1) ◽  
Author(s):  
Yuanjun Lu ◽  
Yau-Tuen Chan ◽  
Hor-Yue Tan ◽  
Sha Li ◽  
Ning Wang ◽  
...  
Keyword(s):  
Cancer Therapy ◽  
Epigenetic Regulation ◽  
Potential Role ◽  
Human Cancer

scholarly journals The Role of lncRNA in the Development of Tumors, Including Breast Cancer

2021 ◽  
Vol 22 (16) ◽  
pp. 8427
Author(s):  
Beata Smolarz ◽  
Anna Zadrożna-Nowak ◽  
Hanna Romanowicz
Keyword(s):  
Breast Cancer ◽  
Breast Carcinoma ◽  
Present Article ◽  
Noncoding Rnas ◽  
Long Noncoding Rnas ◽  
Regulation Of Transcription ◽  
Ribonucleic Acids ◽  
Detailed Review ◽  
Cellular Processes

Long noncoding RNAs (lncRNAs) are the largest groups of ribonucleic acids, but, despite the increasing amount of literature data, the least understood. Given the involvement of lncRNA in basic cellular processes, especially in the regulation of transcription, the role of these noncoding molecules seems to be of great importance for the proper functioning of the organism. Studies have shown a relationship between disturbed lncRNA expression and the pathogenesis of many diseases, including cancer. The present article presents a detailed review of the latest reports and data regarding the importance of lncRNA in the development of cancers, including breast carcinoma.

scholarly journals Genome-Wide Identification and Characterization of Long Noncoding RNAs Involved in Chinese Wheat Mosaic Virus Infection of Nicotiana benthamiana

Biology ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 232
Author(s):  
Weiran Zheng ◽  
Haichao Hu ◽  
Qisen Lu ◽  
Peng Jin ◽  
Linna Cai ◽  
...  
Keyword(s):  
Virus Infection ◽  
Mosaic Virus ◽  
Nicotiana Benthamiana ◽  
Noncoding Rnas ◽  
Long Noncoding Rnas ◽  
Differentially Expressed ◽  
Genome Wide ◽  
Chinese Wheat

Recent studies have shown that a large number of long noncoding RNAs (lncRNAs) can regulate various biological processes in animals and plants. Although lncRNAs have been identified in many plants, they have not been reported in the model plant Nicotiana benthamiana. Particularly, the role of lncRNAs in plant virus infection remains unknown. In this study, we identified lncRNAs in N. benthamiana response to Chinese wheat mosaic virus (CWMV) infection by RNA sequencing. A total of 1175 lncRNAs, including 65 differentially expressed lncRNAs, were identified during CWMV infection. We then analyzed the functions of some of these differentially expressed lncRNAs. Interestingly, one differentially expressed lncRNA, XLOC_006393, was found to participate in CWMV infection as a precursor to microRNAs in N. benthamiana. These results suggest that lncRNAs play an important role in the regulatory network of N. benthamiana in response to CWMV infection.

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