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Children with rare, debilitating brain diseases suffer from mutations in a little-known protein complex

Researchers have mapped the structure and mechanics of a critical cellular machine that malfunctions in people with rare genetic disorders. The discovery could lead to new treatments and faster diagnoses for children with conditions like infantile encephalopathy, corpus callosum hypoplasia, and Kenny-Caffey syndrome.

SourceUniversity of California - Davis·JournalScience Advances·TypeExperimental study·DateMay 8, 2026

A revolutionary method to observe cell transport

Researchers developed a new method to study membrane proteins in their native environment, the cell, using electron spin resonance spectroscopy. This technique allows for precise determination of protein properties and could lead to better understanding and targeting of membrane proteins involved in anti-cancer drug resistance.

SourceUniversité de Genève·JournalScience Advances·TypeNews article·DateOct 24, 2022

How far can a proton make its presence felt when embedded in water?

Researchers have gained insight into the electronic structure of hydrated proton complexes, revealing that three inner water molecules are drastically modified by the proton. The first hydration shell senses the electric field of the proton through Coulomb interactions.

SourceMax Born Institute for Nonlinear Optics and Short Pulse Spectroscopy (MBI)·JournalAngewandte Chemie International Edition·TypeExperimental study·DateSep 19, 2022

New labeling approach enables examination of packages cells send out to gain insight about health

Researchers have developed a new labeling technique to analyze exosomes from specific cell types, providing insights into their role in both health and disease. The technique allows for the identification of protein cargo and RNA in exosomes, enabling the study of cellular communication and potential monitoring of response to treatment.

SourceMedical College of Georgia at Augusta University·JournalJournal of Extracellular Vesicles·DateAug 30, 2022

Sugar metabolism is surprisingly conventional in cancer

Researchers at Washington University in St. Louis found that cancer cells metabolize glucose in their mitochondria, following conventional biochemical patterns. The study suggests that limiting glucose uptake may not be an effective strategy to target cancer cells, and glucose metabolism may need to be reevaluated as a therapeutic target.

SourceWashington University in St. Louis·JournalMolecular Cell·TypeExperimental study·DateAug 15, 2022

Smart contact lenses for cancer diagnostics and screening

Scientists have developed a smart contact lens that can capture and detect exosomes, nanometer-sized vesicles found in bodily secretions, which hold promise for cancer diagnostics. The lens was designed to bind to antibodies capturing exosomes found in tears, offering a potential platform for non-invasive cancer screening.

SourceTerasaki Institute for Biomedical Innovation·JournalAdvanced Functional Materials·TypeExperimental study·DateAug 11, 2022

How the genome is packed into chromosomes that can be faithfully moved during cell division

The Gerlich Group at IMBA found that histone acetylation establishes a sharp surface boundary on chromosomes, resisting microtubule perforation. Chromatin phase separation and DNA looping by condensin cooperates to build mitotic chromosomes with unique physical properties.

What makes a plant grow towards light?

Researchers have identified a family of proteins called PIN-FORMED as essential for auxin transport, guiding plant growth and development. The discovery provides the first structural basis of auxin transport by PIN proteins and sheds light on how herbicides can be recognized by these proteins.

SourceAarhus University·JournalNature·TypeExperimental study·DateJun 29, 2022

Fluorescence microscopy shows how living cells form vesicles to transport cargo like growth factors

Researchers used fluorescence microscopy to study clathrin-mediated endocytosis in living cells. They found evidence of three models of curvature initiation and discovered that short-lived events favored the constant-curvature model, while longer events preferred the flat-to-curved transition pathway.

SourceUniversity of Alabama at Birmingham·JournalNature Communications·TypeExperimental study·DateJun 13, 2022

Novel supramolecular CRISPR–Cas9 carrier enables more efficient genome editing

A team of researchers from Kumamoto University has developed a transformable polyrotaxane carrier that can facilitate genome editing using Cas9RNP with high efficiency. The carrier, called amino-PRX, is multi-step transformable and has low cytotoxicity, making it an enormously promising candidate for safe and efficient delivery.

SourceKumamoto University·JournalApplied Materials Today·TypeExperimental study·DateMay 11, 2022

New technology fused with photosynthetic life offers path to green energy

Researchers at Arizona State University have developed a hybrid device that combines living organisms with bio batteries to produce stored energy under light conditions. The technology, known as microbial electro photosynthesis, has the potential to power a wide range of products, including transportation fuels and cosmetics.

SourceArizona State University·JournalJournal of the American Chemical Society·TypeExperimental study·DateFeb 20, 2022

How to get chloride ions into the cell

A study led by Przemyslaw Nogly at PSI has detailed insight into the mechanism of a light-driven chloride pump in bacteria, revealing how light energy converts to kinetic energy and transports chloride ions inside cells. The pump uses two molecular gates to ensure one-way transport, with the process taking around 100 milliseconds.

SourcePaul Scherrer Institute·JournalScience·TypeExperimental study·DateFeb 3, 2022

Spanish scientists determine the mode of action of essential proteins involved in cancer and Alzheimer´s disease

Researchers have discovered that specific regions of HAT family proteins determine which amino acids they bind to, leading to unique functions in cell growth and diseases like cancer and neurodegenerative disorders. This knowledge will enable efforts to develop compounds targeting these proteins for therapy.

SourceInstitute for Research in Biomedicine (IRB Barcelona)·JournalProceedings of the National Academy of Sciences·DateNov 29, 2021

Centriole instability might contribute to some cases of microcephaly

Researchers at IRB Barcelona have identified γTuRC as a centriole stabilizer, revealing its role in maintaining centriole stability and preventing microcephaly. The study's findings suggest that defects in γTuRC may contribute to various human diseases, including adolescent scoliosis and male infertility.

SourceInstitute for Research in Biomedicine (IRB Barcelona)·JournalNature Communications·TypeExperimental study·DateNov 1, 2021

Towards precision medicine for dialysis patients

A research team from the University of Zurich has identified a common genetic variant in the AQP1 gene that affects treatment efficacy and patient survival on peritoneal dialysis. Patients carrying this variant have a higher risk of death, but researchers found a way to circumvent the problem using colloid osmotic agents.

SourceUniversity of Zurich·JournalNew England Journal of Medicine·TypeExperimental study·DateOct 20, 2021

Flawed quality control in the brain

Scientists developed a new mouse line to study protein balance and quality control in the mammalian brain. The research revealed that different neurodegenerative diseases have distinct protein misfolding patterns, offering insights into potential therapeutic options.

SourceMax-Planck-Gesellschaft·JournalThe EMBO Journal·DateAug 19, 2021

Building better diffusion models for active systems

New theories have enabled researchers to model unusual dynamics where particle motions are no longer influenced by previous events. The 'memory term' principle allows studying this effect in a broader range of situations, particularly for advanced materials that respond to their environment.

SourceSpringer·JournalThe European Physical Journal E·DateNov 19, 2020

Divide and enlarge

A research team led by Prof. Dr. Robert Grosse has found that bundled fibers of actin play a crucial role in the expansion of cell nuclei after division. This process is essential for reorganizing genetic information and processing chromatin.

SourceUniversity of Freiburg·JournalEMBO Reports·DateSep 22, 2020

FSU biologists shed light on how cells move resources

Researchers at Florida State University have discovered a key role for an adaptor protein in forming the outer structure of vesicles, which are essential for transporting molecules within cells. This finding sheds new light on how cells move resources and could potentially lead to breakthroughs in drug delivery and virus entry prevention.

SourceFlorida State University·JournalScience Advances·DateJul 23, 2020

Wireless aquatic robot could clean water and transport cells

Researchers developed a tiny plastic robot that moves under the influence of light and magnetism, allowing it to attract and capture contaminant particles from the surrounding liquid or pick up and transport cells. The robot operates independently of the water composition, making it suitable for use in contaminated water.

SourceEindhoven University of Technology·JournalProceedings of the National Academy of Sciences·DateJul 14, 2020

Kiss and run: How cells sort and recycle their components

Researchers at the University of Basel have discovered a cellular machine called FERARI that sorts out reusable proteins for recycling, introducing a new 'kiss-and-run' mechanism. This process saves energy and time by reusing valuable cell components, potentially mitigating diseases associated with disrupted recycling processes.

SourceUniversity of Basel·JournalNature Cell Biology·DateJan 27, 2020

Neurobiology -- sushi for synapses

A team of researchers at LMU in Munich has found that messenger RNAs are transported between the cell body and nerve processes like sushi on an endless conveyor belt, allowing them to reach specific synapses. The discovery sheds light on how proteins are delivered to synapses, a crucial process for learning and memory.

SourceLudwig-Maximilians-Universität München·JournalNature Communications·DateJul 25, 2019

Enhanced human Blood-Brain Barrier Chip performs in vivo-like drug and antibody transport

A new microfluidic organ chip model of the human blood-brain barrier has been developed, allowing for in vivo-like transport of drugs and therapeutic antibodies. The model recapitulates the physical barrier functions and transport abilities of the human BBB, offering a significant advance in drug development.

Sea slug study illuminates how mitochondria move

Scientists at Scripps Research have discovered how neurons manage mitochondrial transport, a process crucial for nerve cell function and energy production. The study found that cAMP signaling enhances mitochondrial transport after synapse formation, requiring significant energy to maintain communication between cells.

SourceScripps Research Institute·JournalCell Reports·DateJan 16, 2019

Scientists identify new fuel-delivery route for cells

Researchers at WashU Medicine have identified a protein responsible for transporting nicotinamide mononucleotide (NMN) into cells, where it can be used to produce energy. This finding has implications for understanding the process of aging and developing therapies to boost cellular energy levels.

SourceWashU Medicine·JournalNature Metabolism·DateJan 7, 2019

How does potassium enter cells?

A team of scientists has identified a previously unknown protein structure that enables the controlled intake of potassium ions into cells. The discovery, published in Nature Communications, reveals a complex mechanism involving two inter-subunit half-channels and challenges existing theories on potassium transport.

SourceGoethe University Frankfurt·JournalNature Communications·DateNov 26, 2018

Microbes 'MacGyver' membrane transport

E. coli's KdpFABC transport system uses a unique combination of pore and transporter to import potassium ions into the cell, blurring the boundaries between passive transport and active transport complexes. This discovery challenges the long-held dogma that these two systems are mutually exclusive.

SourceUniversity of Groningen·JournalNature Communications·DateNov 26, 2018

How do peptides penetrate cells? Two sides of the same coin

Scientists at IOCB Prague have discovered a previously unknown passive mechanism by which positively charged short peptides can penetrate cells. This process is based on membrane fusion induced by the transported peptides and shares the same mechanistic basis as known processes in neurons during nerve impulses.