Articles tagged with Cellular Physiology
Researchers at Bielefeld University propose a precise and unambiguous way to define chemotypes within a plant species, highlighting genetic and environmental factors influencing chemical composition. This systematic approach aims to improve understanding and practical applications of chemotypes in medicinal plants and agriculture.
A study by IRCCS Fondazione Istituto Neurologico Carlo Besta and Politecnico di Milano demonstrates that innovative materials can coat mitochondria without compromising their function. The coating method retains the mitochondria's ability to produce energy.
Researchers at the University of Gothenburg have identified a previously unknown protein, MSEP, that helps cells divide correctly by maintaining the cellular machinery that pulls chromosomes apart. The protein is encoded by an RNA molecule, ARHGEF17-AS1, which also has a function in cell division.
Researchers identified 3,775 proteins in red blood cells and mapped thousands of physical interactions, revealing a dynamic network that adapts quickly to low-oxygen conditions. The study provides new insight into how red blood cells respond to high-altitude exposure and strenuous exercise, as well as pathological hypoxia.
Researchers at Queen Mary University of London identified a highly mechanosensitive cell population in tendons that respond differently to changes in their physical environment. The study provides new possibilities for future research into tendon health and repair, and may support research into tendon injuries in animals.
Salk Institute researchers have discovered a novel pathway that links chronic interferon II exposure to mitochondrial dysfunction, leading to immunosuppression and enhanced tumor growth. By blocking prostaglandin E2, they found a viable target to restore immune system function and combat immunotherapy resistance.
Researchers have identified GW406108X, a broad-spectrum antiviral compound, that can inhibit a range of enteroviruses, including EV-D68, by targeting a process in human cells. The compound showed activity against multiple viruses, including Rhinovirus A16, and reduced EV-D68 levels by 1,000-fold in laboratory experiments.
A new study found that inducing mitochondrial reactive oxygen species (ROS) during embryonic development protects the adult heart from chemotherapy toxicity in mice. The study discovered that stressed mitochondria release citrate, leading to long-term epigenetic changes that promote beneficial mitohormetic adaptations. These findings s...
Researchers have discovered the underlying mechanism of Atg2-mediated lipid transfer in autophagy, revealing two distinct mechanisms that enable proper growth of the autophagosomal membrane. The phosphorylation of a specific region of Atg2, mediated by Atg1, enables its binding to the endoplasmic reticulum and subsequent lipid transfer.
A KAIST research team has identified the molecular lock that keeps cells trapped in an altered state, opening a new path toward releasing that lock and reversing a cell's fate. The team developed a fundamental control technology called ROOT that can regulate these circuits and restore biological states to their original condition.
Researchers developed a method to quantify individual cell damage using molecular markers, enabling detailed analysis of disease progression in tissue samples. This method can distinguish early disease mechanisms and differentiate between patient-specific and general disease progression.
Researchers found that gut cell turnover depends on nutrient quantity, not specific nutrient quality, in fruit flies. Gut cells sense satiety based on cytoplasm viscosity, not amino acid metabolism.
Researchers have created microscopic oil droplets in water that can change shape in complex ways and engulf their surroundings. The droplets' behavior mimics morphogenesis, a process by which cells reshape themselves, without relying on genes or cellular machinery.
Epithelial tissues respond to sustained mechanical stress by slowly reorganising their keratin cytoskeleton, forming supracellular networks that push the cell nucleus out of its protective cage. This process reveals a new mechanism for tissue adaptation and has implications for development and disease understanding.
A study by John Innes Centre researchers reveals that inner tissues play a crucial role in shaping plant organs, contradicting the widespread assumption that external layers control growth. By analyzing cell division orientation and gene editing techniques, they discovered genes affecting stem thickness in Arabidopsis.
A biomaterial scaffold has been developed to recreate a skull stem cell niche, reducing craniosynostosis-related deformities and promoting normal skull growth. The triphasic scaffold maintained skeletal stem cells while supporting bone formation and tissue regeneration.
Recent research suggests that senescence often limits stem cell activity in normal tissues but can also promote tumor progression in cancer. Understanding the dynamic interplay between these two biological processes is crucial for developing safer regenerative therapies and more effective cancer treatments.
Researchers found that ROS-producing enzymes coordinate cell proliferation, tissue integrity, and differentiation in plants. The study used a liverwort model to examine the role of RBOHs in plant development, revealing their importance in maintaining normal cell shape and tissue organization.
Salk Institute researchers discovered chronoferroptosis, a chronic stress pathway in cells that causes neurons to become less resilient over time and more susceptible to neurodegeneration. Iron accumulation was found to lower the cells' defenses, making them more vulnerable to stressors.
Researchers seek to understand the biological mechanisms behind Ewing sarcoma's rapid growth and spread, developing new tools to visualize DNA structures and regulate gene expression. This could lead to personalized cancer treatments targeting specific molecules for improved patient outcomes.
Researchers discovered Paneth cell metaplasia can act as a protective response in ulcerative colitis by promoting healing and regeneration of the intestinal lining through REG3A. However, persistent changes may still carry risks, including increased cancer risk.
A recent study published in Cell has revealed that senescent cells, often associated with aging and disease, play a previously unrecognized role in building the brain's protective barriers. These cells contribute to the formation of two critical barrier systems: the blood-brain and blood-CSF barriers.
A groundbreaking study identifies a direct energy route between mitochondria and the nucleus, supporting gene regulation, chromatin remodeling, and cell differentiation. The finding challenges traditional assumptions about energy transfer in cells and has significant implications for understanding health and disease.
TIGIT is a second-generation immune checkpoint that exerts immunosuppressive effects through multiple pathways, promoting a hypoxic tumor microenvironment. Combination with PD-1 inhibitors has shown remarkable promise, improving objective remission rates and progression-free survival.
Researchers discovered a structural adaptation supporting the survival and mobility of a Dead Sea single-celled organism in harsh environments. The archaeal filament, powered by a membrane-anchored protein motor, is stiffened and strengthened with a unique outer sheath structure to facilitate movement in viscous conditions.
Researchers found that senescent myoblasts released EVs carrying specific miRNAs that impaired normal muscle cell development and triggered cellular stress responses in healthy muscle cells. The study suggests that extracellular vesicles may play a role in shaping the aging muscle environment.
A recent study identified a new type of β-1,2-glucan-binding protein in bacteria, which binds cyclic β-1,2-glucans and has implications for understanding bacterial interactions with these complex molecules. The discovery opens up new avenues for developing biological pesticides to protect crops from pathogens.
New research reveals that cells slow down heat dissipation due to unique biomolecules, changing our understanding of heat conduction. This phenomenon could affect treatments for conditions linked to body temperature changes.
New review highlights emerging complexity of senescent cell populations playing both protective and harmful roles in aging. Precision geroprotection aims to selectively eliminate maladaptive senescent cells while preserving beneficial ones.
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.
Researchers identify TGF-β signaling pathway as key regulator of osteoblast quiescence, suggesting its inhibition can aid in reactivation of dormant osteoblasts. Combining TGF-β-blocking antibodies with anti-sclerostin treatment shows promising therapeutic potential for osteoporosis treatment.
Researchers created a microfluidic device to measure cell size and stiffness, enabling the analysis of large numbers of cells quickly. The new method uses time-of-flight measurements to determine cell stiffness, with potential applications in disease diagnosis and prognosis.
A recent study reveals that MLKL activation causes direct damage to mitochondria, impairing energy production and leading to functional decline in hematopoietic stem cells. In contrast, deletion or inhibition of MLKL significantly alleviates these defects, suggesting a post-transcriptional mechanism driving HSC aging.
Researchers at the University of Groningen discovered that protein clustering in cells leads to reduced movement and improved efficiency in amino acid production. This finding has practical implications for designing efficient cell factories and increasing substance production inside cells.
A new study by POSTECH researchers found that the protein tau interacts with DNA during cell division, forming condensates that capture microtubules. This interaction affects chromosome alignment and can lead to cellular abnormalities even in healthy cells.
Researchers generated a comprehensive view of DNA methylation abnormalities in human MDS HSCs, uncovering a novel TET2-GFI1 axis that suppresses malignant transformation. The study identifies key hematopoietic regulators and provides a panoramic view of DNA methylation disruption in MDS.
Salk Institute researchers have developed a new biological platform for studying mitochondrial DNA in human physiology, adaptation, and therapeutic development. The platform allows scientists to investigate mitochondrial DNA variation in health and disease, enabling therapeutic innovation for mitochondrial disorders.
A retrospective study of 40 immunocompromised ICU patients found associations between low CD4+T-cell counts and specific lung pathogens. Patients with severe CD4 depletion had higher proportions of fungal infections, while moderate immunosuppression was linked to Streptococcus pneumoniae.
A new study has deciphered the step-by-step assembly of eukaryotic proteasomes, revealing two alternative pathways and a flexible biogenesis process. The findings have far-reaching implications for understanding cellular protein quality control, ageing, and diseases like cancer and neurodegenerative disorders.
Stanford researchers have developed a novel 'scaffold-free' approach for treating damaged muscles, enabling the delivery of more healing cells to the traumatized area. The approach uses a custom molding technology to create dense muscle tissue in customizable geometric shapes and sizes, allowing for more effective muscle regeneration.
Researchers at the University of British Columbia have identified genes and pathways responsible for plant recovery from environmental stress, including cold snaps and flooding. This discovery could lead to the creation of climate-resilient crops that can recover faster and more efficiently after climate events.
Research by University of Missouri scientists found that road salt is deadly to freshwater snails when paired with the presence of predators, causing nearly 60% higher mortality rates. The study suggests practical solutions to reduce salt pollution in waterways, such as cutting road salt use by up to 50%.
For the first time, researchers have directly visualized how newly formed cellular organelles leave the endoplasmic reticulum and transition onto microtubule tracks inside living cells. The study reveals that the ER plays an active role in steering intracellular traffic.
Cancer cells tap into the nervous system's power grid by forming synaptic contacts with nerve cells, promoting tumor growth and spread. Venkataramani's research aims to repurpose the drug perampanel for glioblastoma treatment and develop gene therapy approaches to disconnect tumors from the nervous system.
Researchers developed a novel tool, CytoTape, to record temporal cell activities in situ along a flexible intracellular protein fiber. This technology enables scientists to view interactions on a large scale and over long periods of time, breaking through the tradeoff between resolution and scale.
Researchers at John Innes Centre and Earlham Institute developed a powerful single-cell visualisation technique to understand wheat spike development. The study reveals distinct expression patterns across spikes, shedding light on why basal spikelets fail to achieve full size.
Research led by University of Notre Dame biologist Jason Rohr found that chronic exposure to the insecticide chlorpyrifos causes fish to age faster at the cellular level, leading to accelerated aging and reduced lifespan. The study suggests that low-level exposures can silently accumulate damage over time.
A research team at Goethe University Frankfurt has compiled a catalog of human E3 ligases and mapped their relationships, revealing family-specific functions. The study identifies 40 additional E3 ligases suitable for PROTAC development, expanding the range of tissues and diseases targeted by degradation therapies.
Scientists have discovered how cells maintain safe protein levels despite fluctuations in resources, using a mechanism called Passive Adaptation that adjusts protein removal rates. This process helps cells cope with changes in nutrient availability, development, or stress.
Researchers in Japan discovered that cells eliminate less efficient ribosomes through a 'survival of the fittest' mechanism, ensuring accurate and efficient protein synthesis. This discovery sheds light on how cells maintain quality control and prevents ribosome-related diseases.
Researchers at Virginia Tech have developed a new method for attaching fluorine-18 to trifluoromethyl groups, enabling the tagging of previously inaccessible targets in PET scans. This breakthrough expands the range of molecules that can be imaged, potentially leading to earlier diagnoses and more targeted treatments for diseases.
Researchers at the University of Houston have discovered a potential therapeutic strategy for counteracting muscle wasting in pancreatic cancer by blocking a specific cell pathway. Muscle wasting, also known as cachexia, is a debilitating syndrome affecting 60-85% of patients with pancreatic cancer.
Researchers have discovered a key protein structure in the germ cells of male mice that causes deformations in sperm flagellum leading to infertility. The study used ultrastructure expansion microscopy to visualize the centriole, a tiny cylindrical structure critical for sperm movement.
A study conducted at the University of California, Riverside, has uncovered a link between soybean oil consumption and obesity in mice. The research found that a genetically engineered group of mice on a high-fat diet rich in soybean oil did not gain weight, suggesting that the liver protein HNF4α plays a crucial role in fat metabolism.
Scientists have discovered a protein called SCEP3 that ensures even chromosome segregation in plants, preventing infertility and genetic diseases. This finding has implications for plant breeding and understanding human fertility, with the equivalent gene SIX6OS1 potentially playing a role in promoting correct chromosome segregation.
Researchers at Florida Atlantic University have discovered a potential new treatment for Alzheimer's disease by targeting muscle protein Cathepsin B. The study found that increasing Ctsb in muscle tissue may offer protection against the effects of AD and promote brain cell growth, restoring protein balance and rebalancing brain activity.
Engineers from the University of Rochester's Department of Biomedical Engineering are studying how cells interact mechanically with the extracellular matrix to build tissues and organs. The study aims to shed light on developmental diseases, such as cancer and failed wound healing, which involve distorted principles during development.
Researchers at Hebrew University of Jerusalem unlock natural pathway to immortalize cow cells, overcoming major barrier to affordable cultivated beef. The study reveals bovine cells can spontaneously renew themselves indefinitely without genetic modification.
Researchers have identified a novel principle in biology that mathematically explains why the growth of organisms slows as nutrients become more abundant. The global constraint principle unifies two classic biological laws and provides a fresh perspective for looking at growth across all forms of life.
Researchers explore the link between senescent cells and metabolic diseases, highlighting potential treatments known as senotherapeutics. Senolytics, senomorphics, and senosensitizers are interventions aimed at eliminating or suppressing senescent cells to mitigate metabolic disease.