Articles tagged with Cellular Physiology
Researchers have developed a new biosensor that can detect different physiological signals and brightly illuminate them in far-red light. The sensor, called WHaloCaMP, was created by Helen Farrants after she successfully re-developed an earlier version of the protein biosensors to carry out their original intention.
A team of researchers created RENAISSANCE, an AI-based tool that simplifies the creation of kinetic models to accurately depict metabolic states. The tool successfully generated models that matched experimentally observed metabolic behaviors in Escherichia coli, simulating how the bacteria would adjust their metabolism over time.
Researchers found that cell nuclei control tissue stiffness and ordering in eye and brain tissues, revealing a new role for the nucleus in organ formation. This discovery challenges existing views on tissue organization and has implications for understanding diseases associated with impaired architecture.
Researchers from Brookhaven National Laboratory have developed an effective way to image a single cell using multiple techniques, providing significant implications in medicine and agriculture. The team used advanced X-ray imaging technologies to capture high-resolution images of the cellular structure and chemical processes within cells.
Professor Helle Ulrich will investigate how a small regulatory protein called ubiquitin contributes to DNA replication and repair, and decipher how cells direct different pathways. The ERC Advanced Grant aims to gain a deeper mechanistic understanding of ubiquitin's function in preventing mutations that can cause ageing and cancer.
Researchers at Goethe University Frankfurt have discovered thalidomide derivatives that target and degrade BCL-2, a protein essential for the survival of cancer cells. The derivatives bind to CRBN, reprogramming its binding surface to mark BCL-2 for degradation, ultimately leading to cell death.
Researchers have uncovered a novel regulator governing how cells respond to mechanical cues, finding that ETV4 bridges cell density dynamics to stem cell differentiation. This discovery has significant implications for controlling cancer cells through mechanical cues.
Researchers found that nutrient-starved cells divert ER exit sites to lysosomes for degradation, using a novel pathway to free up amino acids. This process involves the recruitment of molecules to direct ER exit sites to lysosomes, where they are destroyed and their components recycled.
Researchers discovered compounds with untapped therapeutic potential for treating BPH, melanogenesis, and nerve damage. Metformin restored sex hormone homeostasis, epimedin B stimulated pigmentation function, and hydralazine suppressed ferroptosis to aid in axon regeneration.
A recent study published in Nature Aging suggests that mechanical damage to the cell membrane can induce cellular senescence, a state characterized by cell cycle arrest and tissue dysfunction. This mechanism involves calcium ion influx and the tumor suppressor gene p53, offering new insights into the aging process.
Researchers discovered that a single mutation in a key synaptonemal complex protein can cause infertility in mice and is likely to have the same effect in humans. This finding may lead to new technologies for treating male infertility by pinpointing the exact location of the defect.
Jinglei Ping, a UMass Amherst engineering professor, has received a $1.9 million grant to investigate a new method of regulating exosome traffic using electronic signals. This approach aims to control cell communication in cancer and heart disease research.
Red blood cell transfusions were common in ICU patients globally, with overlapping reasons for use despite differing clinical contexts. The three most common triggers for transfusion (hypotension, tachycardia, hemodynamic instability) were largely consistent across regions.
A global team of experts outlines a roadmap for creating a comprehensive and inclusive reference work on human skin cell composition. The proposed Human Skin Cell Atlas will provide a standardized framework for semi-automated mapping of patient-specific changes in skin diseases, supporting personalized medicine.
Imperial researchers have imaged Piezo1 channels in human cells and organs, revealing their role in regulating blood pressure, respiration, bladder control, and the immune system. This breakthrough could lead to a better understanding of their role in fundamental physiological processes and potentially new drug targets for diseases.
Scientists have discovered an additional source of genetic mutations that cause rare conditions like Huntington's disease. Expanded CAG repeat RNA can form aggregates that reduce global protein synthesis and lead to neurotoxicity.
A team of researchers from Goethe University Frankfurt has discovered a central switch point in the mitochondrial signaling chain under misfolding stress. The mitochondria send two chemical signals to the cell when protein misfolding stress occurs, triggering a protective response that reduces misfolded proteins and stabilizes membranes.
Researchers have successfully visualized the three-dimensional structure of human tRNA splicing endonuclease TSEN, a crucial enzyme in tRNA maturation. The study reveals how TSEN recognizes and excises introns from precursor tRNAs, shedding light on its role in neurodegenerative disorders like pontocerebellar hypoplasia.
A new special issue of Calcified Tissue International & Musculoskeletal Research explores how the skeleton functions as both a secretory organ and an endocrine target tissue. Researchers discuss key avenues in this area of research, including deciphering hormone messages encoded in bone cell secretory products.
A team of scientists led by Professor Ivan Đikić and Christian Hübner identified the role of ubiquitin in regulating ER-phagy, a process involved in the degradation of the endoplasmic reticulum. This discovery sheds light on neurodegenerative diseases caused by defective FAM134B and ARL6IP1 proteins.
A research group led by Osaka University found that plant mesophyll cells can detect mechanical pressure and differentiate into epidermal cell types via ATML1 gene upregulation. This study reveals the mechanisms involved in plant regeneration and offers new insights into position-dependent cell fate determination.
Researchers tested zoledronic acid's effects on cellular senescence using multiple approaches. The study found that zoledronic acid killed senescent cells with minimal effects on non-senescent cells and reduced circulating SASP factors, including CCL7, IL-1β, TNFRSF1A, and TGFβ1.
Researchers have identified distinct senescence subpopulations and dynamic changes in the transcriptome of human cells undergoing senescence. The study provides new understanding of the heterogeneous nature of senescence and its impact on aging diseases.
Researchers found that necroptosis promotes metastasis in breast cancer models, and blocking it leads to inhibition of metastasis. Necroptosis may be a key factor in tumor progression, and targeting its regulators could be critical for mitigating metastasis.
Researchers developed a hybrid micro-robot that can navigate in physiological environments and capture targeted damaged cells. The micro-robot uses electric and magnetic mechanisms to identify and transport single cells for further study.
Researchers discovered a mechanism involving ribosomes that enables the heart to toggle between a regular maintenance mode and an energy-boost mode. This finding provides clues for developing medicines targeting specific ribosomes to treat cardiovascular disease.
Researchers at the University of Groningen discovered that cells separate essential biochemical reactions into different time periods. This separation explains metabolic oscillations leading up to cell division and has implications for our understanding of cellular physiology, cancer, and aging.
Alejandro Sánchez Alvarado is awarded the Vilcek Prize in Biomedical Science for his groundbreaking work on regeneration. His research has significant implications for understanding cellular and organismal regeneration, with potential for further breakthroughs.
Biomedical engineers at UC Davis have created semi-living cyborg cells that can carry out novel functions, such as producing therapeutic drugs and cleaning up pollution. The cyborg cells are more resistant to stressors and can invade cancer cells, making them a promising tool for various applications.
Researchers at Washington University in St. Louis demonstrated that eukaryotic cells can control organelle size by exhibiting random bursts of growth, maintaining a narrow window of precision within this noise., The study suggests a biophysical mechanism for the robustness and universality of organelle size control.
A team at the Allen Institute for Cell Science developed a new way to quantify the internal organization of human cells, capturing details about cellular shape variation. The study provides a roadmap for biologists to understand cell organization in a measurable and quantitative way.
Researchers highlight recent progress in organotypic models, which offer a balance between the accessibility and control of in vitro context. These models have been used to study various aging-related phenotypes, including skin, gut, and skeletal muscle, providing valuable insights into the underlying mechanisms.
A Collaborative Research Centre investigates animal navigation using the Earth's magnetic field. The study focuses on vertebrates, including birds and fish, aiming to protect endangered migratory species.
Researchers at the University of Tsukuba found that the Newtic1 protein plays a crucial role in limb regeneration by secreting TGFβ1 growth factors. This discovery sheds light on the regenerative abilities of adult newts and their potential as a model for regenerative medicine.
Researchers found a significant association between NTM infection and increased mortality in patients with end-stage renal disease. Early diagnosis and treatment may improve survival. NTM can cause nonspecific symptoms like fever and weight loss, and patients with compromised immune systems are at higher risk.
A study found that in people with significant kidney disease, psoriasis does not increase the risk of heart attack. After controlling for other risk factors, researchers found no association between psoriasis and heart attacks in patients with end-stage renal disease.
Sensory neurons in human skin have been found to regulate melanocytes, influencing pigmentation and cell survival. The study identified a protein called RGMB as a key factor promoting melanocyte survival and darkness.
Scientists have elucidated the regulatory functions of Pan1p, a key player in late-stage clathrin-mediated endocytosis. The protein drives actin assembly and disassembly, facilitating vesicle internalization.
Researchers discovered that liver cancer cells modify their metabolism to leave them susceptible to disruptions in arginine supply, a key molecule. A three-pronged approach targeting tumor metabolism, blocking survival-promoting responses, and starving tumors of arginine can induce senescence, making cancer cells killable.
Researchers from the University of Tsukuba discovered that changes in the extracellular environment during metamorphosis and body growth enable newt muscle fibers to dedifferentiate and contribute to limb regeneration. This process is crucial for newts' ability to regenerate limbs throughout their life cycle.
Human cells move faster through thick mucus due to fin-like ruffles on their membranes, which sense viscosity and adapt to fluid thickness. This discovery could lead to improved diagnosis and treatment of lung diseases, including asthma and mucinous cancer.
Researchers developed a mathematical model to predict the efficiency of nanoparticle delivery into cells, particularly in stem cells. They found that nanoparticles become trapped in bubble-like vesicles, preventing them from reaching their targets.
Researchers found that tendons, not muscles, are the key site where increased mechanosensitivity translates to better running and jumping capabilities. High expression of the calcium-ion channel mechanoreceptor coincided with wider tendons composed of larger collagen fibrils.
A new platform mimics live cellular environment to guide stem cell differentiation outside the body. Researchers from Chung-Ang University developed a novel platform based on metal-organic frameworks, which offers advantages over conventional methods for in vitro stem cell differentiation.
Researchers have identified new biomarkers to detect non-small cell lung cancer in its early stages through a blood test, offering improved survival chances. The approach can also identify potential drug resistance, allowing clinicians to choose alternative treatment options.
A new study applies 'Deep Visual Proteomics' to cancer cells, revealing mechanisms driving tumor development and exposing therapeutic targets. The method integrates advances from four technologies to analyze protein landscapes, providing insights into cancer vulnerabilities.
Researchers develop novel therapeutic approach for treating tuberculosis using phosphatase inhibitors, offering potential benefits for TB research and basic biology exploration. The discovery provides a promising alternative to traditional antibiotic-based treatments and has significant implications for combating antimicrobial resistance.
A study found that intact astrocyte networks are essential for neural homeostasis, synaptic plasticity, and spatial cognitive abilities in adult mice. Disrupting these networks impairs spatial learning and memory due to altered neuronal excitability and compromised synaptic transmission.
Scientists from the Institute of Industrial Science have developed a theoretical model for optimal search strategy in biological systems, which may help design new drones or nanobots. The model uses stochastic optimal control theory to analyze chemotaxis, a process of attraction to chemical gradients.
Researchers discovered that yeast cells can actively regulate temperature-dependent phase separation in their membranes. This process is crucial for membrane function and cell division. By adjusting the temperature, yeast cells can maintain a consistent state of phase separation, which may be essential for optimal cellular performance.
Researchers discovered that human lung stem cells can undergo abnormal differentiation in response to injury from diseases like COVID-19 and pulmonary fibrosis. This aberrant process prevents the restoration of normal lung function, but the study also identified a potential therapeutic target for reversing damage.
Researchers at University of Göttingen investigate tight junctions' importance in cell movement and their consequences when missing. The findings suggest a 'tug of war' scenario between cells with unequal contraction and stretching, affecting tissue mobility and biological functions.
Rice University's Neuroengineering Initiative is working on developing noninvasive systems to monitor and control the brain. Jerzy Szablowski aims to achieve single-cell precision in 15-20 years through innovative receptor development and gene therapy.
Researchers have developed chimeric exosomes that co-activate the immune system to combat tumors. The therapy targets solid tumors, where the immune cells are often compromised, and improves treatment outcomes for patients.
Researchers at the Leibniz Institute for Food Systems Biology have identified the 'caramel receptor', which recognizes furaneol, a natural odorant found in fruits and coffee. This discovery contributes to a better understanding of molecular coding of food flavors.
Researchers have developed a new sensor that can detect chemical changes in immune cells during the breakdown of pathogens. The breakthrough could lead to early diagnosis and better treatment of infectious diseases such as tuberculosis, which claims about 1.5 million lives annually.
A team of researchers from DGIST has developed a model to understand the condensation and decondensation of DNA induced by protamine in semidilute solutions. Protamine forms transient bridges between DNA, allowing its compaction into bundles. The study could provide valuable information on vaccine development and fertility.
A team of international researchers has unraveled the inner workings of C5aR2, a key receptor involved in inflammation and COVID-19. The study provides an additional opportunity for therapeutic targeting with new drug molecules to block its activation and inflammation response.
A recent study published at Masonic Medical Research Institute found that electrocution-induced physiological stress can lead to overlapping cardiac conditions in individuals. The research used human induced pluripotent stem cells to investigate the mechanisms behind these conditions, shedding light on potential new treatments.
Researchers found that consuming dileucine enhances the metabolic processes driving muscle growth, resulting in a 42% increase in protein synthesis. In contrast, leucine alone showed no significant impact on protein breakdown, highlighting the molecule's potential as a signaling agent for muscle-building pathways.