scholarly journals The Research Progression and Clinical Significance of Circular RNAs in Head and Neck Cancers

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Danhui Wang ◽  
Zhi Li ◽  
Yongjun Wu
Keyword(s):  
Head And Neck ◽  
Molecular Mechanisms ◽  
Rapid Development ◽  
Survival Rates ◽  
Head And Neck Cancers ◽  
Circular Rnas ◽  
Valuable Insight ◽  
Therapeutic Approaches ◽  
Non Coding Rna ◽  
Insight Into

With rapid development of science technique and molecular research, a large number of circular RNAs (circRNAs) were discovered. CircRNAs that are a heterogeneous endogenous group of non-coding RNA not only are abundantly and diffusely expressed in mammals but also participate in many biological processes, such as in tumor ingenuity and progress. CircRNAs have rarely open reports in the head and neck cancers (HNC), which are an aggressive malignant tumor with unsatisfactory overall survival rates. The diagnostics and treatments continue to improve while the survival rate of HNC patients has no more obvious improvement. Recent studies that are aimed at exploring the molecular mechanisms of occurrence and progression of circRNAs in HNC provide a valuable insight into potential novel diagnostic and therapeutic approaches. In this review, we summarize the increasing number of published researches on the research progression of circRNAs in HNC, as well as their possible clinical implications on HNC.

scholarly journals Circles in the heart and cardiovascular system

2019 ◽  
Author(s):  
Tingsen Benson Lim ◽  
Annadoray Lavenniah ◽  
Roger Sik-Yin Foo
Keyword(s):  
Cardiovascular System ◽  
Direct Interaction ◽  
Circular Rnas ◽  
Regulation Of Transcription ◽  
Valuable Insight ◽  
Therapeutic Approaches ◽  
Non Coding Rna ◽  
Published Research ◽  
Insight Into

Abstract The combination of next-generation sequencing, advanced bioinformatics analysis, and molecular research has now established circular RNAs (circRNAs) as a heterogeneous group of non-coding RNA that is widely and abundantly expressed. CircRNAs are single-stranded RNA, covalently backspliced to form closed circular loops. Different models of back-splicing have been proposed, and mechanisms for circRNA function include sequestering microRNAs, direct interaction with proteins, regulation of transcription, and translation. Exploring the role of circRNAs in different disease settings, and understanding how they contribute to disease progression promises to provide valuable insight into potential novel therapeutic approaches. Here, we review the growing number of published research on circRNAs in the heart and cardiovascular system and summarize the circRNAs that have been implicated in disease.

Molecular targeted therapy: novel therapeutic approach for head and neck cancer

2020 ◽  
Vol 11 (10) ◽  
pp. 637-651 ◽  
Author(s):  
Swatantra Shrivastava ◽  
Ravleen Nagi ◽  
Saurabh Sharma ◽  
Sajid Ahmed Rasul Sanadi ◽  
Elbadri Taha Dafallah ◽  
...  
Keyword(s):  
Head And Neck ◽  
Head And Neck Cancers ◽  
Targeted Agents ◽  
Tumor Resistance ◽  
Therapeutic Approaches ◽  
Public Health Burden ◽  
Host Immune Responses ◽  
Alternative Treatment Option ◽  
Tumor Specificity ◽  
Insight Into

Cancer is a major public health burden worldwide, affecting millions of people each year. One of the major hallmarks of cancer is rapid growth and progression by evasion of host immune responses. Tumor resistance to conventional anticancer drugs by several mechanisms, such as drug inactivation, efflux pumps and enhanced toxicity to normal cells decreases their clinical efficacy. These limitations resulted in the development of new targeted agents, such as monoclonal antibodies and small molecule inhibitors that have high tumor specificity. This paper discusses the therapeutic applications of novel molecular targeted agents and immunotherapy as an alternative treatment option for head and neck cancers, as well as provides insight into future therapeutic approaches for advanced head and neck cancers.

scholarly journals Transgenic Epigenetics: Using Transgenic Organisms to Examine Epigenetic Phenomena

2012 ◽  
Vol 2012 ◽  
pp. 1-14 ◽  
Author(s):  
Lori A. McEachern
Keyword(s):  
Molecular Mechanisms ◽  
Model Organism ◽  
Evolutionary Conservation ◽  
Model Organisms ◽  
Valuable Insight ◽  
Epigenetic Control ◽  
Transgenic Organisms ◽  
Epigenetic Analysis ◽  
Insight Into ◽  
Epigenetic Processes

Non-model organisms are generally more difficult and/or time consuming to work with than model organisms. In addition, epigenetic analysis of model organisms is facilitated by well-established protocols, and commercially-available reagents and kits that may not be available for, or previously tested on, non-model organisms. Given the evolutionary conservation and widespread nature of many epigenetic mechanisms, a powerful method to analyze epigenetic phenomena from non-model organisms would be to use transgenic model organisms containing an epigenetic region of interest from the non-model. Interestingly, while transgenic Drosophila and mice have provided significant insight into the molecular mechanisms and evolutionary conservation of the epigenetic processes that target epigenetic control regions in other model organisms, this method has so far been under-exploited for non-model organism epigenetic analysis. This paper details several experiments that have examined the epigenetic processes of genomic imprinting and paramutation, by transferring an epigenetic control region from one model organism to another. These cross-species experiments demonstrate that valuable insight into both the molecular mechanisms and evolutionary conservation of epigenetic processes may be obtained via transgenic experiments, which can then be used to guide further investigations and experiments in the species of interest.

scholarly journals Research Progress of circRNAs in Head and Neck Cancers

2021 ◽  
Vol 11 ◽  
Author(s):  
Panchun Li ◽  
Kunjie Zhu ◽  
Yongzhen Mo ◽  
Xiangying Deng ◽  
Xianjie Jiang ◽  
...  
Keyword(s):  
Head And Neck ◽  
Malignant Tumors ◽  
Treatment Resistance ◽  
Disease Diagnosis ◽  
Incidence Rates ◽  
Head And Neck Cancers ◽  
Research Progress ◽  
Circular Rnas ◽  
Patients With Cancer ◽  
High Conservation

Circular RNAs (circRNAs) are a novel type of non-coding RNAs. Because of their characteristics of a closed loop structure, disease- and tissue-specificity, and high conservation and stability, circRNAs have the potential to be biomarkers for disease diagnosis. Head and neck cancers are one of the most common malignant tumors with high incidence rates globally. Affected patients are often diagnosed at the advanced stage with poor prognosis, owing to the concealment of anatomic sites. The characteristics, functions, and specific mechanisms of circRNAs in head and neck cancers are increasingly being discovered, and they have important clinical significance for the early diagnosis, treatment, and prognosis evaluation of patients with cancer. In this study, the generation, characteristics, and functions of circRNAs, along with their regulatory mechanisms in head and neck cancers have been summarized. We report that circRNAs interact with molecules such as transcription and growth factors to influence specific pathways involved in tumorigenesis. We conclude that circRNAs have an important role to play in the proliferation, invasion, metastasis, energy and substance metabolism, and treatment resistance in cancers.

Experiences of the Mass Media

2015 ◽  
pp. 129-140
Author(s):  
Anne Eyre ◽  
Pam Dix
Keyword(s):  
Mass Media ◽  
Mobile Phones ◽  
Rapid Development ◽  
Colleges And Universities ◽  
Valuable Insight ◽  
Next Generation ◽  
Human Interest ◽  
The Mass Media ◽  
Research Students ◽  
Insight Into

This chapter studies how the human interest angle has always made bereaved people and survivors attractive to the mass media. The advent of 24-hour news has also meant increasing pressure to find stories to fill the time, leading to more speculative reporting, while the facts are being established. The rapid development of technology means that disasters can now be captured on video or mobile phones as they unfold. This potentially offers rapid news and updates and valuable insight into disaster experiences. But it also encourages the acquisition and dissemination of images that may be distasteful, exploitative, and harmful to the feelings, rights, and welfare of those affected by disasters. Disaster Action members have sought to influence journalists' perceptions and treatment of those they seek to interview. This includes giving presentations to journalism and research students at colleges and universities, contributing to the work of the Dart Centre for Journalism and Trauma, and the production of a leaflet with guidance on interviewing, which spells out what it is like to be on the receiving end. One of the most rewarding parts of this work is contributing to education for the next generation of journalists.

scholarly journals Treatment of Locally Advanced Head and Neck Cancer: Historical and Critical Review

2002 ◽  
Vol 9 (5) ◽  
pp. 387-399 ◽  
Author(s):  
Muhyi Al-Sarraf
Keyword(s):  
Head And Neck ◽  
Locally Advanced ◽  
Survival Rates ◽  
Nasopharyngeal Cancer ◽  
Head And Neck Cancers ◽  
Standards Of Care ◽  
Historical Progress ◽  
Improved Outcomes ◽  
Wide Experience

Background Advanced squamous cell cancers of the head and neck have traditionally been associated with high rates of morbidity and mortality. Advances in management have improved outcomes for most of these patients. Methods The author reviews the historical progress in management of these difficult tumors and adds his own wide experience to describe and evaluate newer approaches to management. Results Over the last 10 years, overall survival rates for patients with head and neck cancers have improved as has quality of life. New standards of care have been defined for patients with nasopharyngeal cancer and for those with advanced unresectable disease. Organ preservation is more commonly achieved. Conclusions Newer targeted therapies are likely to add to the progress that has already been achieved in the multimodality management of patients with head and neck cancers.

scholarly journals Identification of Non-coding RNA Biomarkers in Stress-induced Depression via Comprehensive Analysis of Competing Endogenous RNA Network

2020 ◽  
Author(s):  
xuanjun liu ◽  
Lan Yan ◽  
Chun Lin ◽  
Yiliang Zhang ◽  
Haofei Miao ◽  
...  
Keyword(s):  
Molecular Mechanisms ◽  
Comprehensive Analysis ◽  
Differentially Expressed ◽  
Psychiatric Disease ◽  
Circular Rnas ◽  
Messenger Rnas ◽  
Competing Endogenous Rna ◽  
Non Coding Rna ◽  
Non Coding Rnas ◽  
Promising Perspective

Abstract BackgroundDepression is one of the most common psychiatric disease worldwide. Although the research about the pathogenesis of depression have achieved progress, the detailed effect of non-coding RNAs (ncRNAs) in depression are still not clearly elucidated. This study was aimed to identify non-coding RNA biomarkers in stress-induced depression via comprehensive analysis of competing endogenous RNA networkMethodsIn this present study, we acquired RNA expression from RNA seq expression profile in three mice with depressive-like behaviors using chronic restraint stress paradigm and three C57BL/6J wild-type mice as control mice. ResultsA total of 41 differentially expressed circular RNAs (circRNAs) and 181 differentially expressed messenger RNAs (mRNAs) were up-regulated, and 65 differentially expressed circRNAs and 289 differentially expressed mRNAs were down-regulated, which were selected by a threshold of fold change ≥2 and a p-value < 0.05. Gene Ontology was performed to analyze the biological functions, and we predicted potential signaling pathways based on Kyoto Encyclopedia of Genes and Genomes pathway database. In addition, we constructed a circRNA-microRNA (miRNA)-mRNA regulatory network to further identify non-coding RNAs biomarkers. ConclusionsOur findings provide a promising perspective for further research into molecular mechanisms of depression, and targeting circRNA -mediated competing endogenous RNA (ceRNA) network is a useful strategy to early recognize the depression.

scholarly journals Insight into Salivary Gland Aquaporins

Cells ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 1547 ◽  
Author(s):  
Claudia D’Agostino ◽  
Osama A. Elkashty ◽  
Clara Chivasso ◽  
Jason Perret ◽  
Simon D. Tran ◽  
...  
Keyword(s):  
Molecular Mechanisms ◽  
Physiological Role ◽  
Main Role ◽  
Osmotic Gradient ◽  
Therapeutic Approaches ◽  
Potential Therapeutic Target ◽  
Transmembrane Channel ◽  
Saliva Secretion ◽  
Insight Into

The main role of salivary glands (SG) is the production and secretion of saliva, in which aquaporins (AQPs) play a key role by ensuring water flow. The AQPs are transmembrane channel proteins permeable to water to allow water transport across cell membranes according to osmotic gradient. This review gives an insight into SG AQPs. Indeed, it gives a summary of the expression and localization of AQPs in adult human, rat and mouse SG, as well as of their physiological role in SG function. Furthermore, the review provides a comprehensive view of the involvement of AQPs in pathological conditions affecting SG, including Sjögren’s syndrome, diabetes, agedness, head and neck cancer radiotherapy and SG cancer. These conditions are characterized by salivary hypofunction resulting in xerostomia. A specific focus is given on current and future therapeutic strategies aiming at AQPs to treat xerostomia. A deeper understanding of the AQPs involvement in molecular mechanisms of saliva secretion and diseases offered new avenues for therapeutic approaches, including drugs, gene therapy and tissue engineering. As such, AQP5 represents a potential therapeutic target in different strategies for the treatment of xerostomia.

scholarly journals Physical Activity Dynamically Regulates the Hippocampal Proteome along the Dorso-Ventral Axis

2020 ◽  
Vol 21 (10) ◽  
pp. 3501
Author(s):  
Surina Frey ◽  
Rico Schieweck ◽  
Ignasi Forné ◽  
Axel Imhof ◽  
Tobias Straub ◽  
...  
Keyword(s):  
Physical Activity ◽  
Regional Differences ◽  
Molecular Mechanisms ◽  
Wheel Running ◽  
Actin Binding ◽  
Label Free ◽  
Therapeutic Approaches ◽  
Cytoskeleton Remodeling ◽  
Insight Into ◽  
Voluntary Wheel

The hippocampus is central for higher cognition and emotions. In patients suffering from neuropsychiatric or neurodegenerative diseases, hippocampal signaling is altered causing cognitive defects. Thus, therapeutic approaches aim at improving cognition by targeting the hippocampus. Enhanced physical activity (EPA) improves cognition in rodents and humans. A systematic screen, however, for expression changes in the hippocampus along the dorso-ventral axis is missing, which is a prerequisite for understanding molecular mechanisms. Here, we exploited label free mass spectrometry to detect proteomic changes in the hippocampus of male mice upon voluntary wheel running. To identify regional differences, we examined dorsal and ventral CA1, CA3 and dentate gyrus hippocampal subregions. We found metabolic enzymes and actin binding proteins, such as RhoA, being upregulated in the hippocampus upon EPA suggesting a coordination between metabolism and cytoskeleton remodeling; two pathways essential for synaptic plasticity. Strikingly, dorsal and ventral hippocampal subregions respond differentially to EPA. Together, our results provide new insight into proteomic adaptations driven by physical activity in mice. In addition, our results suggest that dorsal and ventral hippocampus, as well as hippocampal subregions themselves, contribute differently to this process. Our study therefore provides an important resource for studying hippocampal subregion diversity in response to EPA.

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