(Press-News.org) With advances in medical science driving progress against childhood brain tumors, today three out of four young patients survive at least five years beyond diagnosis. However, the outcomes look grim when malignant cells spread, or metastasize.
Such is the case with medulloblastoma, a type of brain cancer that arises in the cerebellum, at the back of the head. Although rare in absolute terms -- about 350 cases emerge each year, 60 percent of them in children -- medulloblastoma is the most common and deadliest form of pediatric brain cancer. Metastasis to the lining of the brain or spinal cord is responsible for virtually all deaths from the disease.
Now, research led by USC investigators has shined new light on how medulloblastoma travels to other sites within the central nervous system. The study, which appeared in the journal END
Cancer neuroscientists identify a key culprit behind pediatric brain cancer's spread
ABAT enzyme helps medulloblastoma cells feed, according to study led by USC Brain Tumor Center and Norris Comprehensive Cancer Center
2021-06-29
ELSE PRESS RELEASES FROM THIS DATE:
The evolution of axial patterning
2021-06-29
In a new article in Nature Communications, a research group led by Grigory Genikhovich at the University of Vienna has found that the way the main body axis of sea anemones is patterned by different intensities of β-catenin signaling is similar to that of sea urchins and vertebrates. This suggests that this axial patterning mechanism already existed about 650 million years ago.
The positioning of all anatomical structures in an embryo is determined by systems of molecular coordinates, which are called body axes. Different regulatory genes are activated at specific locations along the body axes to drive the development of all body parts in correct places.
This process is very ...
Cell biology -- Masters of synapse modulation
2021-06-29
Ludwig-Maximilians-Universitaet (LMU) in Munich researchers have shown how RNA-binding proteins modulate synaptic responses that mediate the transmission of nerve cell impulses.
Cells in the central nervous system possess a high degree of flexibility, which enables them to adapt to fluctuating demands and respond to changing patterns of neuronal activity. This is achieved by modulating the connections between nerve cells, which are mediated by structures called synapses that determine how neighboring neurons respond to stimulation. These adjustments in turn require the intracellular transport of mRNAs. Consequently, the required proteins ...
The earthworm in new light
2021-06-29
Earthworms experience constant chemical interactions with bacteria, fungi, plants and small invertebrates across soil ecosystems. Even within their tissues, earthworms harbor symbiotic microbes and small animal parasites that trigger internal metabolic responses such as innate immunity. To reveal the fundamental processes that enable animal-microbe symbioses to form and persist, we have to study their metabolic interactions in situ. By combining novel imaging techniques, a team of researchers around Benedikt Geier from the Max Planck Institute for Marine Microbiology ...
New components for antisense gene therapy show promise in treating spinal muscular atrophy
2021-06-29
Skoltech researchers and their colleagues from Russia and the UK investigated the safety and efficacy of new chemistry in antisense oligonucleotides used to treat spinal muscular atrophy (SMA), a debilitating genetic disease. Their results may lead to the development of drugs with less toxicity and fewer injections needed thanks to prolonged action. The paper was published in the journal Nucleic Acid Therapeutics.
Antisense oligonucleotides are single stranded chemically modified fragments of DNA that target pre-messenger RNA, short bits of genetic information a ribosome reads to make a protein. Depending on how a particular antisense oligonucleotide works, the target mRNA can either be destroyed or undergo subtle changes in how it's spliced, i.e. how exons, the ...
Scientists discover new type of quasiparticle
2021-06-29
Russian scientists have experimentally proved the existence of a new type of quasiparticle - previously unknown excitations of coupled pairs of photons in qubit chains. This discovery could be a step towards disorder-robust quantum metamaterials. The study was published in Physical Review B.
Superconducting qubits are a leading qubit modality today that is currently being pursued by industry and academia for quantum computing applications. However, the performance of quantum computers is largely affected by decoherence that contributes to a qubits extremely short lifespan and causes computational errors. Another ...
Microbes feast on crushed rock in subglacial lakes beneath Antarctica
2021-06-29
Pioneering research has revealed the erosion of ancient sediments found deep beneath Antarctic ice could be a vital and previously unknown source of nutrients and energy for abundant microbial life.
The study, led by the University of Bristol and published today in Nature's Communications Earth & Environment journal, sheds new light on the many compounds supporting various microbes which form part of a huge subglacial ecosystem.
Lead author Dr Beatriz Gill Olivas, a Post-Doctoral Research Associate at the University of Bristol, said: "Although the study focused on samples obtained from a single ...
Scientists observe the dynamics behind the exceptional summer 2020 Yangtze River rainfall seasonal projections
2021-06-29
During summer 2020, the Yangtze River basin experienced persistent, record-breaking meiyu rainfall. Likewise, the region suffered from severe flooding and water damage as accumulated rainfall broke records dating back to 1954. Regions outside the meiyu rain belt received significant summer rainfall as well, including Beijing, located in northeastern China.
Typically, an above average meiyu rainfall season follows a strong El Niño during the previous winter. However, summer 2020 followed a neutral El Niño-Southern Oscillation (ENSO) event. Therefore, scientists are working ...
How environmental factors could provide for a young brain
2021-06-29
A stimulating environment keeps the "hippocampus" - which is the brain's memory control center - young, so to speak. Causes of this are molecular mechanisms that affect gene regulation. These current findings from studies in mice provide clues as to why an active, varied life can help preserve mental fitness in old age. Researchers from the DZNE and the Center for Regenerative Therapies Dresden (CRTD) at the Technische Universität Dresden report on this in the journal Nature Communications.
Human DNA - and this also applies to mice - contains thousands of genes. However, it is not only the genetic blueprint that is decisive for the function of a cell and whether it is healthy or not, but above all which genes can be switched on or off. ...
83% of the Spanish population trusts in vaccination against COVID, 25 points more than in January
2021-06-29
FECYT - Spanish Foundation for Science and Technology - presented today at the headquarters of the National Museum of Science and Technology, MUNCYT, IN Alcobendas, the results of the third Social Perception Survey of scientific aspects of the COVID-19 in a debate moderated by Pampa García Molina, Editor-in-Chief of the SINC Agency, in which Raquel Yotti, Director of the Carlos III Health Institute of Madrid, Josep Lobera, Professor of Sociology at the Universidad Autónoma de Madrid (UAM) and scientific director of the Social Perception Survey on the scientific aspects of COVID-19 and ...
Through the nano hole: lego technique reveals the physics of DNA transport through nanopores
2021-06-29
Polymers are long, chain-like molecules which are everywhere in biology. DNA and RNA are polymers formed by many consecutive copies of nucleotides coupled together. When being transported within or between cells, these biological polymers must pass through nanometre-sized holes called "nanopores".
This process also underlies a rapidly developing method for analysing and sequencing DNA called nanopore sensing.
The study, published in the journal END ...
LAST 30 PRESS RELEASES:
Global HIV study finds that cardiovascular risk models underestimate for key populations
New study offers insights into how populations conform or go against the crowd
Development of a high-performance AI device utilizing ion-controlled spin wave interference in magnetic materials
WashU researchers map individual brain dynamics
Technology for oxidizing atmospheric methane won’t help the climate
US Department of Energy announces Early Career Research Program for FY 2025
PECASE winners: 3 UVA engineering professors receive presidential early career awards
‘Turn on the lights’: DAVD display helps navy divers navigate undersea conditions
MSU researcher’s breakthrough model sheds light on solar storms and space weather
Nebraska psychology professor recognized with Presidential Early Career Award
New data shows how ‘rage giving’ boosted immigrant-serving nonprofits during the first Trump Administration
Unique characteristics of a rare liver cancer identified as clinical trial of new treatment begins
From lab to field: CABBI pipeline delivers oil-rich sorghum
Stem cell therapy jumpstarts brain recovery after stroke
Polymer editing can upcycle waste into higher-performance plastics
Research on past hurricanes aims to reduce future risk
UT Health San Antonio, UTSA researchers receive prestigious 2025 Hill Prizes for medicine and technology
Panorama of our nearest galactic neighbor unveils hundreds of millions of stars
A chain reaction: HIV vaccines can lead to antibodies against antibodies
Bacteria in polymers form cables that grow into living gels
Rotavirus protein NSP4 manipulates gastrointestinal disease severity
‘Ding-dong:’ A study finds specific neurons with an immune doorbell
A major advance in biology combines DNA and RNA and could revolutionize cancer treatments
Neutrophil elastase as a predictor of delivery in pregnant women with preterm labor
NIH to lead implementation of National Plan to End Parkinson’s Act
Growth of private equity and hospital consolidation in primary care and price implications
Online advertising of compounded glucagon-like peptide-1 receptor agonists
Health care utilization and costs for older adults aging into Medicare after the affordable care act
Reading the genome and understanding evolution: Symbioses and gene transfer in leaf beetles
Brains of people with sickle cell disease appear older
[Press-News.org] Cancer neuroscientists identify a key culprit behind pediatric brain cancer's spreadABAT enzyme helps medulloblastoma cells feed, according to study led by USC Brain Tumor Center and Norris Comprehensive Cancer Center