Articles tagged with Fibrils
Scientists have found that short peptides can remain stable and fold into shapes that may give them biological functions in highly acidic conditions similar to Venus's cloud layer. This discovery opens up new possibilities for the search for life on planets that don't resemble Earth.
Researchers from the University of Osaka found that a protein associated with amyloidogenic light chain disease forms amyloid in areas of constrained geometry when subjected to shear stress. This study, published in FEBS Journal, suggests that mechanical pressure and chemical inhibitors may help dissolve amyloids.
Researchers use advanced 3D X-ray techniques to determine how narwhal's tusk acquires its twisted structure, revealing a double-spiral structure with a biological counterbalance. The discovery provides new insight into how nature constructs advanced materials with extreme mechanical properties.
A team from Tokyo Metropolitan University has identified a crucial precursor structure in the formation of tau protein fibrils, mirroring the crystallization of polymers. Dissolving these clusters prevents fibril formation, suggesting a new paradigm for treating neurodegenerative diseases.
Researchers develop a simplified model of tau protein that forms disease-like fibrils, shedding light on the fundamental interactions underlying neurodegenerative diseases. The 'mini prion' can recreate the critical hallmarks of tauopathies, such as Alzheimer's disease.
A study reveals the critical role of α-synuclein's fuzzy coat in its pathological transmission, with implications for disease progression and potential therapeutic targets. The researchers identified two structural variants of α-synuclein fibrils, which differ in their dynamic nature and ability to seed new aggregates.
Researchers develop a powerful model to study TDP-43 pathology, which accumulates in the cytoplasm and depletes from the nucleus, leading to neuronal death. The 'seeded' protein aggregates recapitulate key features of ALS and frontotemporal dementia.
Researchers from the University of Gothenburg have made a breakthrough in understanding the role of protein tau in Alzheimer's disease. By identifying specific amino acid modifications that occur before thread-like fibrils form, scientists hope to develop complementary drugs to combat the disease.
An international team has presented the first detailed picture of Huntington's disease protein clumps, known as fibrils. These elongated shapes differ in important ways from those in other diseases like Alzheimer's and Parkinson's, offering new insights into their role in the disease.
Researchers have developed a simple model system to break down fibrils into their constituent single units or liquid droplets. This discovery has the potential to treat neurodegenerative diseases such as Alzheimer's and Parkinson's by targeting pathological fibrils.
Researchers have identified polyphosphate as a universal biomolecule that binds to the lysine-rich pocket of α-synuclein protofilaments. This binding contributes to the stability of the fibers, which are associated with synucleinopathy patient-derived fibrils.
A new study led by the University of Michigan suggests that polyphosphate may play a crucial role in neurodegenerative diseases. Researchers discovered that polyphosphate is present in fibrils found in patients' brains, which could help explain their devastating effects.
Scientists have successfully imaged superspreader fibrils in the brain tissue of Alzheimer's patients, shedding light on their role in spreading the disease. The study, published in Science Advances, uses advanced imaging techniques to visualize the fibrils' formation and spread.
Researchers have developed a promising new drug, RI-AG03, that successfully targets and blocks both major aggregation-promoting 'hotspots' of the Tau protein. The peptide-based approach shows significant potential in preventing the build-up of Tau proteins and neurodegeneration, addressing a critical gap in current treatments.
Researchers have developed a peptide inhibitor called RI-AG03 that effectively prevents Tau protein aggregation in lab and fruit fly studies. The breakthrough targets both major aggregation-promoting 'hotspots' of the Tau protein, potentially paving the way for more effective treatments for neurodegenerative diseases.
A region in alpha-synuclein protein aggregates has been identified as a potential therapeutic target to prevent conversion into toxic amyloid fibrils, which accumulate in the brains of people suffering from Parkinson's disease. The discovery opens the door to developing new therapeutic strategies for inactivating these toxic forms.
Researchers from NTU Singapore have created a smart, reusable adhesive more than ten times stronger than a gecko's feet adhesion. The adhesive uses shape-memory polymers that can stick and detach easily when needed, making it ideal for robotic grippers and climbing robots.
A new imaging technique developed by researchers at Washington University in St. Louis has allowed scientists to visualize the differences between synthetic peptides and amyloid beta fibril assemblies. The study provides valuable information on the heterogeneity of these assemblies, which is crucial for understanding protein toxicity a...
A new study finds that Type 2 diabetes causes intervertebral discs to become stiffer and change shape earlier than normal. This leads to a compromised ability to withstand pressure, highlighting the need for preventative and therapeutic strategies.
Post-translational modifications on alpha-synuclein slow amyloid aggregation and protect neurons, potentially slowing disease progression. The study's findings suggest that targeting these modifications could lead to new treatments for Parkinson's disease.
Researchers developed a novel test that detects single ⍺-synuclein fibrils in patient samples to identify patients with Parkinson's disease earlier. This breakthrough has the potential to create early applicable molecular diagnostics, improve clinical trials, and facilitate drug screening for neurodegenerative diseases.
Researchers at Tokyo Medical and Dental University found that mutant α-synuclein protein propagates through the brain's lymphatic system in its monomeric state before aggregating, shedding light on Parkinson's disease progression. The study suggests targeting early events may limit disease progression.
EPFL researchers have created a novel biosensor, ImmunoSEIRA, to detect misfolded protein biomarkers linked to Parkinson's and Alzheimer's diseases. The sensor employs AI-powered neural networks for disease stage quantification and features gold nanorod arrays with antibodies for specific protein detection.
ClearTau overcomes limitations of previous methods by producing Tau fibrils efficiently and consistently. This allows researchers to study the development of tauopathies and develop disease-specific therapeutics.
Researchers identified the structure of a special type of amyloid beta plaque protein associated with Alzheimer's disease progression. Lecanemab, an approved AD treatment, can bind and neutralize these small aggregates, potentially slowing cognitive decline in patients with early AD.
Scientists discovered a way to regulate the mechanical strength and recoverability of peptide hydrogels by manipulating incubation temperature and time. By controlling droplet formation, they created fibril networks with optimal properties for various applications.
Research by Whitehead et al. reveals that cellular senescence triggers amyloidosis through changes in small extracellular vesicles and extracellular matrix composition. The study provides novel insights into the formation of aortic medial amyloid and offers potential therapeutic targets for mitigating its effects.
Researchers at the University of Pittsburgh have identified a universal mechanism for lysosomal repair, known as the PITT pathway, which helps maintain cellular longevity. The study reveals that damaged lysosomes are quickly repaired through the PITT pathway, but defects in this process can contribute to age-related diseases such as Al...
Scientists found a connection between the SARS-CoV-2 virus and the production of misfolded proteins called amyloids, which can cause complex symptoms and damage in organs such as the heart and kidneys. The researchers' discovery may help explain why COVID-19 often affects multiple parts of the body.
Researchers at UCLA have discovered that amyloid fibrils in the brains of patients with frontotemporal degeneration are composed of the protein TMEM106B, not TDP-43 as expected. This finding may lead to new focus on TMEM106B in FTLD and similar brain diseases.
Researchers have discovered a common thread between multiple neurodegenerative diseases, including Alzheimer's, dementia with Lewy bodies, and frontotemporal lobar degeneration. A protein called TMEM106B forms fibrils in diseased brain tissue, potentially hobbling cells.
Biologists at the University of Leeds created high-resolution images of the foot-and-mouth disease virus, revealing fibril structures that play a key role in replication. These findings could lead to new antiviral treatments for diseases caused by the virus.
Researchers discovered that amyloid beta peptides, which form gummy plaques in Alzheimer's disease, go through several intermediate stages of frustration as they dock and lock to growing fibrils. This suggests that drugs might be developed to stabilize the fibril tips and block further aggregation by targeting the 'Achilles' heel' of f...
Researchers found that α-syn fibrils spread through lysosomes, impairing their function and allowing the seeding of soluble α-syn. This process creates a hub for the propagation of disease pathology, shedding light on a crucial mechanism in Parkinson's disease.
A new water filter membrane made from natural raw materials has been developed to render viruses harmless. The membrane combines protein nanofibrils with iron oxyhydroxide nanoparticles to eliminate a wide range of water-borne viruses, including those causing gastrointestinal infections, with great efficiency.
Researchers at St. Petersburg State University have created a new theory and experimental methods to separate spectral signals from amyloid fibrils, overcoming obstacles faced by previous studies. This breakthrough may aid in the development of new drugs for neurodegenerative diseases.
Researchers from University of Bath and ISIS Neutron and Muon Source invent technique to directly measure amyloid fibril growth rate in solution. This breakthrough is crucial for understanding the diseases associated with amyloid fibrils, which are deposits of proteins linked to Alzheimer's, Parkinson's, and Type 2 diabetes.
Researchers using the New Vacuum Solar Telescope observed a significant acceleration of magnetic reconnection due to propagating disturbances caused by filament eruptions. The study, published in The Astrophysical Journal, found that these disturbances led to shorter and brighter current sheets with increased reconnection rates.
Researchers have found that a protein called transthyretin (TTR) can break toxic amyloid beta clumps associated with Alzheimer's disease. The study suggests that modified TTR peptides may prevent or slow progression of the disease in mouse models, offering new hope for patients.
A team of researchers from Ruhr-Universität Bochum and Vrije Universiteit Amsterdam have determined the development stages of Aβ fibrils, which form the basis of Alzheimer's disease plaques. The study provides new insights into the formation of oligomers, potentially harmful structures that contribute to the toxic effect of Aβ.
Researchers from Heidelberg University have identified the mechanism by which molecular chaperones dissolve amyloid fibrils formed in the brain, a key factor in Parkinson's disease. The study reveals that the chaperone complexes on the surface of the fibrils create strong enough pulling forces to disrupt the aggregates.
Research suggests that different α-synuclein aggregate conformations lead to distinct pathologies in neurodegenerative diseases. Suzuki et al. found that α-synuclein fibrils (-) inhibit proteasome activity, leading to accumulation of phosphorylated α-synuclein and ubiquitinated proteins.
Researchers at the University of Leeds have visualised the structure of amylin fibrils, a key player in type 2 diabetes, and discovered an intricate architecture that makes some sequences more prone to aggregation. This finding suggests a potential explanation for the rapid onset of disease in individuals with early-onset type 2 diabetes.
Researchers at Tokyo University of Science used infrared laser irradiation to destroy amyloid fibrils, which are typical of neurodegenerative diseases like Alzheimer's. The study combines experimental and simulation results, showing that the process begins at the core of the fibril, where resonance breaks intermolecular hydrogen bonds.
Studies of alpha-synuclein protein aggregates found variations in elongation rates and fibril structures, depending on cross-seeding and pH levels. High-speed atomic force microscopy enabled visualization of growth over time, shedding light on amyloid-related diseases.
Scientists have developed a high-resolution model of protein strings typical for diabetes, revealing a strong similarity to those found in Alzheimer's disease. The findings suggest an increased risk of contracting diabetes in Alzheimer's patients and vice versa.
UMass Amherst scientists used computational techniques to study amyloid fibril growth and brain pathology, revealing that earlier forms of the protein are toxic. The research provides a comprehensive understanding of the process, highlighting the importance of energy landscapes in disease progression.
Researchers from University of Konstanz discover that a molecular chaperone helps form Alzheimer fibrils by exposing a vulnerable area on the protein tau, preventing longer, more toxic fibril formation. The findings suggest a possible defense mechanism against Alzheimer's disease.
Researchers have made a groundbreaking finding by using gold nanoparticles to label and visualize amyloid fibrils in their natural state. This breakthrough has significant implications for understanding the mechanisms of Alzheimer's disease and developing new treatments.
Researchers found that a body clock mechanism boosts collagen production when we're most active, replenishing sacrificial fibrils at night. This discovery sheds light on the extracellular matrix and its role in maintaining body structure, with implications for understanding aging and wound healing.
Scientists have developed a non-fibrillating form of human insulin called glycoinsulin, which demonstrates the same glucose-lowering effects as native insulin without fibril formation. This discovery presents a promising solution for patients relying on insulin pumps and could improve the shelf life of insulin products.
A team of researchers has developed a technique for fabricating tiny strands of collagen called fibrils to facilitate further research on the eye's repair process. The study, funded in part by a $1.8 million NIH grant, aims to improve our understanding of how corneal keratocytes respond to injury and leave scar tissue.
Researchers have developed unique polymer fibers with high tensile strength and toughness, making them suitable for industrial applications such as textiles, medical technology, and aerospace engineering.
Researchers reveal precise three-dimensional structure of amyloid fibrils from PI3K SH3 domains, shedding light on protein folding and misfolding processes. The findings have significant implications for understanding the causes of neurodegenerative diseases.
A research team mapped the molecular structure of an aggressive protein aggregate that causes accelerated Alzheimer's disease. The study revealed variations in amyloid depositions and potential risk factors for spreading and amplification.
Researchers used a far-infrared free-electron laser to break down amyloid fibril aggregates, disrupting their rigid sheet-like structure and causing free peptides to form. This technique has potential applications in medicine, biomaterial engineering, and regenerative medicine.
A team of researchers refutes the long-held common thesis that Parkinson's disease is caused by deposits of insoluble fibrils consisting of alpha-synculein. Instead, they found that Lewy bodies contain mainly membrane fragments, lipids, and other cellular material.
Researchers at MIT used NMR spectroscopy to determine the structure of glucagon fibrils, finding a novel antiparallel beta sheet conformation and steric zippers that make the protein stable. This discovery may lead to shelf-stable versions of the hormone, which is used to control diabetes.
Scientists at ETH Zurich found that a cellular mechanism called SCF detects and targets alpha-synuclein fibrils for breakdown. This mechanism could be used to develop therapies for neurodegenerative diseases like Parkinson's. Gene therapy and stem cell transplantation may also offer new options.
A team of researchers has mapped the molecular structure and dynamics of an aggressive protein modification linked to Alzheimer's disease. The study found that this modification accelerates disease progression, causing toxic protein fragments to aggregate into sticky plaques that disrupt brain cell communication.