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ACE-ing protein detection in single cells

A new DNA-powered signal amplification technology called ACE significantly enhances the sensitivity of mass cytometry, enabling the detection of multiple proteins in single cells. This breakthrough allows researchers to investigate complex biological processes and study immune cell functions with unprecedented depth.

SourceWyss Institute for Biologically Inspired Engineering at Harvard·JournalNature Biotechnology·TypeExperimental study·DateJul 30, 2024

Neuroscience research leverages stem cells to understand how neurons connect and communicate in the brain

Researchers at Colorado State University used human stem cells to study synaptic connections in the brain, focusing on GABAergic synapses. They found that Gephyrin promotes autonomous assembly of these synapses, which can develop independently of neuronal communication. This understanding could lead to new treatments for neurological d...

SourceColorado State University·JournalProceedings of the National Academy of Sciences·DateJun 26, 2024

Quantum state mixing in photobiology – new insight from ultrafast terahertz Stark spectroscopy

Researchers used ultrafast terahertz Stark spectroscopy to characterize the molecular quantum states involved in the proton pump reaction of bacteriorhodopsin. The study reveals pronounced quantum state mixing in the early electronic and nuclear dynamics, supporting a picture of mixed excited-state characters.

SourceMax Born Institute for Nonlinear Optics and Short Pulse Spectroscopy (MBI)·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateJun 20, 2024

Blast from the past

Researchers have discovered a new source of resistance to the devastating wheat blast disease, leveraging a gene that also protects against powdery mildew. The Pm4 gene, found in European wheat varieties, confers dual protection against the pathogen and its effector molecule AVR-Rmg8.

SourceJohn Innes Centre·JournalNature Plants·TypeExperimental study·DateJun 20, 2024

Researchers identify biomarkers in blood to predict liver cancer

A new study suggests that proteins detectable in the blood could improve predictions about risk of liver cancer, potentially leading to earlier therapeutic interventions. The researchers used proteomics to develop a prediction model and identified 56 plasma proteins associated with liver cancer.

SourceMass General Brigham·JournalJNCI Journal of the National Cancer Institute·TypeExperimental study·DateMay 1, 2024

Synthetic droplets cause a stir in the primordial soup

Scientists from OIST created synthetic droplets to mimic biological processes, finding that pH gradients facilitate Marangoni effect and enabling droplets to detect and migrate towards each other. This study sheds light on the movement of simplest forms of life in primordial soup billions of years ago.

SourceOkinawa Institute of Science and Technology (OIST) Graduate University·JournalJournal of the American Chemical Society·TypeExperimental study·DateApr 25, 2024

New method for marking neurotransmitter receptors expressed in the living animal brain

Researchers have developed a new method to label naïve neurotransmitter receptor proteins in living animal brains without genetic manipulation. This technique, known as ligand-directed acylimidazole chemistry (LDAI chemistry), uses pulse-chase analysis to track the movement and fate of proteins in real-time.

SourceJapan Science and Technology Agency·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateFeb 22, 2024

Getting a better look at tumors

A new MRI-based method uses CEST technology to detect water cycling across cellular membranes, providing a non-invasive way to assess tumor malignancy and treatment effectiveness. The technique sheds light on tumor phenotype and offers a promising tool for personalized cancer diagnosis and therapy.

SourceWiley·JournalAngewandte Chemie International Edition·DateJan 5, 2024

Modulation of protein stability: a new approach to studying cosolvent effects

Researchers used molecular dynamics simulations to study how urea and alcohol induce structural changes in proteins, with a focus on stabilizing helices and coils. The team identified preferential binding parameters for both cosolvents, demonstrating opposing effects that can be predicted using computational methods.

SourceOkayama University·JournalProtein Science·TypeComputational simulation/modeling·DateOct 19, 2023

Lurbinectedin for Neuroendocrine Tumors (NETs)

Researchers discuss lurbinectedin as a method to treat neuroendocrine tumors (NETs), with encouraging results from phase II basket studies demonstrating activity in platinum-sensitive relapsed SCLC and other malignancies. Lurbinectedin's mechanism of action involves inhibiting oncogenic transcription, promoting apoptosis and cell death.

SourceImpact Journals LLC·JournalOncoscience·TypeCommentary/editorial·DateOct 6, 2023

How the hospital pathogen Acinetobacter baumannii quickly adapts to new environmental conditions

Researchers find that Acinetobacter baumannii can achieve significant functional modifications in protein complexes over short evolutionary time spans, particularly in hair-like cell appendages. This diversity may affect the pathogen's interaction with its environment and inform personalized therapies.

SourceGoethe University Frankfurt·JournalPLOS Genetics·TypeComputational simulation/modeling·DateAug 4, 2023

Predicting lifespan-extending chemical compounds for C. elegans with machine learning

A new study uses machine learning to analyze data from DrugAge, a database of chemical compounds modulating lifespan in model organisms. The researchers create four types of datasets to predict whether or not a compound extends the lifespan of C. elegans, using features such as compound-protein interactions and Gene Ontology terms.

SourceImpact Journals LLC·JournalAging-US·TypeComputational simulation/modeling·DateJul 26, 2023

Acute kidney injury not associated with worsening kidney function in persons with CKD

Researchers found that acute kidney injury does not predict worsening of kidney function trajectory in patients with CKD, suggesting that pre-existing kidney disease may be a major contributor. The study recommends focusing on flattening the eGFR slope and treating proteinuria to slow CKD progression.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·TypeObservational study·DateJul 10, 2023

Researchers make major strides toward an all-purpose biosensor chip

The researchers have demonstrated significant improvements for chip-based sensing devices that can detect or analyze substances across widely varying concentrations. They developed signal-processing techniques that enable seamless fluorescence detection of a mixture of nanobeads in concentrations across eight orders of magnitude.

SourceOptica·JournalOptica·DateJun 22, 2023

New Journal of Pharmaceutical Analysis articles showcase innovative approaches for diagnostics and drug screening and evaluation

Recent studies in the New Journal of Pharmaceutical Analysis feature novel diagnostic tools, RNA sequencing-based workflows, and mechanical property evaluations to enhance cancer and cardiovascular disease treatment outcomes. These innovations aim to improve the therapeutic effect of drugs and promote personalized medicine.

SourceCactus Communications·JournalJournal of Pharmaceutical Analysis·TypeExperimental study·DateJun 21, 2023

SRI seeks to learn how insects speak through smells

Researchers at SRI International have identified genes that enable insects to produce terpenes, a key component of their chemical communication. This breakthrough provides a roadmap for understanding how these chemicals are used and could lead to new ways to protect crops and prevent insect-borne diseases.

SourceSRI International·JournalProtein Science·TypeComputational simulation/modeling·DateJun 20, 2023

Artificial photosynthesis for environmentally friendly food production

Researchers at TUM have successfully developed a method to produce the essential amino acid L-alanine from CO2 using synthetic enzymes and green methanol. This process requires significantly less space than traditional methods and can be powered by renewable energy sources, making it an important step towards more sustainable agriculture.

SourceTechnical University of Munich (TUM)·JournalChem Catalysis·TypeExperimental study·DateApr 28, 2023

Stay CALM when the heart skips a beat

Researchers at Kyoto University have discovered a genetic mutation that causes lethal arrhythmia in humans. The study found that a novel variant of the CALM2 gene produces robust arrhythmogenicity in human-induced pluripotent stem cell-derived cardiomyocytes.

SourceKyoto University·JournalCirculation Arrhythmia and Electrophysiology·TypeExperimental study·DateApr 13, 2023

How protein-rich droplets form

Scientists have developed a new method to measure calorimetric quantities at the molecular level with picosecond time resolution. By tracking water's spectroscopic fingerprints in the THz range, researchers can accurately predict protein-rich droplet formation and its dependency on external parameters like temperature.

SourceRuhr-University Bochum·JournalThe Journal of Physical Chemistry Letters·TypeExperimental study·DateFeb 10, 2023