Molecular Mechanisms in Clear Cell Renal Cell Carcinoma: Role of miRNAs and Hypermethylated miRNA Genes in Crucial Oncogenic Pathways and Processes

Molecular Mechanisms in Clear Cell Renal Cell Carcinoma: Role of miRNAs and Hypermethylated miRNA Genes in Crucial Oncogenic Pathways and Processes Eleonora A. Braga1*†, Marina V. Fridman2†, Vitaly I. Loginov1,3, Alexey A. Dmitriev4 and Sergey G. Morozov1 1Institute of General Pathology and Pathophysiology, Moscow, Russia 2Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, Russia 3Research Center of Medical Genetics, Moscow, Russia 4Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia Clear cell renal cell carcinoma (ccRCC) is the third most common urological cancer, and it has the highest mortality rate. The increasing drug resistance of metastatic ccRCC has resulted in the search for new biomarkers. Epigenetic regulatory mechanisms, such as genome-wide DNA methylation and inhibition of protein translation by interaction of microRNA (miRNA) with its target messenger RNA (mRNA), are deeply involved in the pathogenesis of human cancers, including ccRCC, and may be used in its diagnosis and prognosis. Here, we review oncogenic and oncosuppressive miRNAs, their putative target genes, and the crucial pathways they are involved in. The contradictory behavior of a number of miRNAs, such as suppressive and anti-metastatic miRNAs with oncogenic potential (for example, miR-99a, miR-106a, miR-125b, miR-144, miR-203, miR-378), is examined. miRNAs that contribute mostly to important pathways and processe...
Source: Frontiers in Genetics - Category: Genetics & Stem Cells Source Type: research

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Date: Wednesday, 07 17, 2019; Speaker: Mary Kearney, PhD, Head, Translational Research Unite, HIV Dynamics and Replication Program, Center, National Cancer Institute; https://bit.ly/2RyT8Kw
Source: NIH Calendar of Events - Category: American Health Source Type: events
In this study, we constructed a dual function nanosystem, copper sulfide nanoplatform loaded with the chemotherapeutic drug docetaxel wrapped by a conjugated polymer-peptide for targeted chemo-phototherapy. The nanoconstruct has been successfully designed with a size of 186.1 ± 5.2 nm, a polydispersity index of 0.18 ± 0.01, and zeta potential of −16.4 ± 0.1 mV. The enhanced uptake and near-infrared-responsive behavior of the nanosystem resulted in efficient drug release, photothermal ablation, effective cytotoxic activity, and potentiated reactive oxygen sp...
Source: Nanomedicine: Nanotechnology, Biology and Medicine - Category: Nanotechnology Source Type: research
In this study, the nasopharyngeal carcinoma cell line was cultured in a superparamagnetic iron oxide nanoparticle aqueous solution with a concentration of 1 μg/mL by using magnetic labeling technology. The cells took up superparamagnetic nanoparticles through the endocytosis process, which caused the cells to become magnetic and manipulable by a magnetic field gradient. Each cell contained 5.266 × 106 superparamagnetic nanoparticles, as determined using the magnetophoresis method. A specific domain configuration and its related distribution of magnetic poles in a patterned thin film were obtained after apply...
Source: Materials Science and Engineering: C - Category: Materials Science Source Type: research
ConclusionAs a composite scaffold, an NT-3 sustained-release system cross-linked with an acellular spinal cord scaffold has potential applications for tissue engineering.Graphical abstract
Source: Materials Science and Engineering: C - Category: Materials Science Source Type: research
We examined the U.S. thoracic surgery workforce using the 2010 and 2014 Area Health Resource Files. We calculated the density of thoracic surgeons per 100,000 persons for each year at the state and county level. We performed descriptive statistics and developed maps highlighting changes over time and geographic regions.ResultsDespite an overall increase in thoracic surgeons from 2010 to 2014, we observed declining density nationwide (1.5% change) and in sparsely populated states. The difference in thoracic surgeon density widened slightly between 2010 from 0.80 per 100,000 compared to 0.84 per 100,000 in 2014 in all rural ...
Source: The Annals of Thoracic Surgery - Category: Cardiovascular & Thoracic Surgery Source Type: research
Publication date: Available online 22 June 2019Source: Research in Veterinary ScienceAuthor(s): Marta Baxarias, Pamela Martínez-Orellana, Gad Baneth, Laia Solano-GallegoAbstractLeishmaniosis due to Leishmania infantum is a complex infection that can affect both humans and dogs, and present a wide range of clinical signs and clinicopathological abnormalities. The conventional treatment of this disease is challenging due to the fact that complete parasitological cure commonly does not occur. Furthermore, treatment of the disease with the conventionally used drugs has several shortcomings. These include the need for lo...
Source: Research in Veterinary Science - Category: Veterinary Research Source Type: research
Publication date: Available online 24 June 2019Source: Biosensors and BioelectronicsAuthor(s): Diaa I. Osman, Said M. El-Sheikh, Sheta M. Sheta, Omnia I. Ali, Aliaa M. Salem, Wafaa Gh Shousha, Sherif F. EL-Khamisy, Sherif M. ShawkyAbstractDevelopment of ultra-sensitive, high specific and cost-effective nucleic acids (NAs) biosensors is critical for early diagnosis of cancer, genetic diseases and follows up response to treatment. Metal-organic frameworks (MOFs) as sensing materials underwent significant development in recent years due to their unique merits, such as structural diversity, tunable pore scale, large surface ar...
Source: Biosensors and Bioelectronics - Category: Biotechnology Source Type: research
Publication date: Available online 22 June 2019Source: Biosensors and BioelectronicsAuthor(s): Mohsen Mohammadniaei, Anna Guo, Sachin Ganpat Chavan, Aneesh Koyappayil, Seong-Eun Kim, Hyun Jin Yoo, Junhong Min, Min-Ho LeeAbstractDevelopment of a very sensitive biosensor is accompanied with an inevitable shrinkage in the linear detection range. Here, we developed an electrochemical biosensor with a novel methodology to detect microRNA-21 (miR21) at an ultralow level and broad linear detection range. A three-way junction RNA structure was designed harboring (i) a methylene blue (MB)-modified hairpin structure at its one leg t...
Source: Biosensors and Bioelectronics - Category: Biotechnology Source Type: research
Publication date: 15 November 2019Source: Journal of Molecular Structure, Volume 1196Author(s): Ibrahim A.I. Ali, Sahar S.A. El-Sakka, Mohamed H.A. Soliman, Omayma E.A. MohamedAbstractThe new quinoline derivatives: 2-oxo-1,2-dihydroquinoline-4-carbohydrazide (1), 2-(allyloxy) quinoline-4-carbohydrizde (2), 1-allyl-2-oxo-1,2-dihydroquinoline-4-carbohydrazid (3) and 2-(allyl-thio)quinoline-4-carbohydrazide (4) and their Cu(II), Ni(II) and Co(II) complexes were synthesized and characterized by using elemental analysis (CHNM%), FTIR, UV/Vis, 1H NMR, 13C NMR spectra, DTA, TGA, magnetic susceptibility and the conductivity of 0.0...
Source: Journal of Molecular Structure - Category: Molecular Biology Source Type: research
We examined whether knowing someone who has an advanced breast cancer would influence knowledge, attitudes, beliefs, and practices of self and clinical breast-examination. We conducted a descriptive cross-sectional survey of 67 women, who were purposively sampled based on relation, through patients receiving palliative care services at a tertiary healthcare facility. Participants were non-blood relation of the patients and hence, referred to as patients’ micro-community. Data were collected from January to June 2018, using an adapted and adopted questionnaire and analyzed in R software version 3.5.1.3. Statistical si...
Source: International Journal of Africa Nursing Sciences - Category: African Health Source Type: research
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