Articles tagged with Cell Death
Dysregulated neutrophils may play a key role in persistent low-grade inflammation seen in chronic coronary syndrome. Researchers found that neutrophils from patients with stable coronary artery disease do not die as they should, persisting and remaining highly active.
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 propose using Caenorhabditis elegans to identify novel ferroptosis regulators through chemical mutagenesis screens and genetic modifier screens. This approach could help address unanswered questions in ferroptosis biology, including sensitivity variations between cells and tissues.
The emerging role of ZBP1 in cancer therapy involves converting genomic stress into potent antitumor immunity. Therapeutic activation of the ZBP1 pathway may transform immunologically "cold" tumors into "hot" tumors by inducing immunogenic necroptosis, stimulating robust immune responses.
Researchers at Texas A&M University have found a way to intervene early in traumatic brain injuries using a natural, gut-derived chemical that prevents post-traumatic epilepsy from taking root. The treatment reduced brain inflammation, improved memory and mood, protected brain cells, made seizures both rarer and harder to trigger.
Researchers developed a new way to uncover differences in how viruses infect and destroy individual microbial cells. The study used a mathematical modeling framework to analyze infection outcomes in individual cells, revealing striking accuracy and new insights into viral behavior.
Researchers propose a new perspective on ARDS pathogenesis, arguing that multiple forms of regulated cell death communicate through extensive molecular crosstalk. This crosstalk collectively drives lung inflammation and respiratory failure, highlighting the need for network-based therapeutic strategies.
Researchers at Olivia Newton-John Cancer Research Institute discovered that reduced BECLIN1 levels weaken the gut's protective barrier, leading to increased susceptibility to inflammation and disease. This finding may help explain why some people are more susceptible to gut inflammation and associated diseases.
Researchers identified karyoptosis as a key link between toxic protein accumulation and neuron death in neurodegenerative diseases like Alzheimer's and frontotemporal dementia. The study found that targeting proteins acting as 'switches' in this pathway may slow or prevent cell death by karyoptosis.
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 at Niigata University have uncovered a new function of APP, promoting lysosomal exocytosis to expel damaged nuclear material and protect neurons from damage. Reduced APP levels or mutations associated with familial AD led to accumulation of nuclear waste, triggering neuroinflammation and cell death.
A team of researchers has identified a previously unknown vulnerability in KRAS-mutated pancreatic cancer cells, making them susceptible to necroptosis. Blocking the tumor cells' defense mechanism by inhibiting caspase-8 leads to significant cell death and reduced tumor growth.
Ferroptosis spreading through propagative signals is a growing area of research, suggesting that cell death may propagate between cells and travel through tissues. Evidence points to lipid peroxides and iron as potential propagative factors, potentially contributing to the transmission of ferroptotic signals.
Researchers discovered a fast protective mechanism in cells that forms a ring-like structure around the nucleus to prevent DNA damage and cell death. This 'actin ring' protects the nucleus by confining and stabilizing it, making it less likely to rupture.
Researchers developed multifunctional metal–organic framework nanoparticles that degrade HK-2, suppress glycolysis, and induce cuproptosis. CHNDs showed stronger anticancer activity than either the HK-2 degrader or the copper nanoplatform alone, disrupting protein homeostasis and cancer energy metabolism.
A study by Zhejiang University researchers reveals that TATA box-binding protein-associated factor 1 (TAF1) acts as a context-dependent molecular switch regulating ferroptosis in cancer cells. In <em>TP53</em>-mutant tumors, TAF1 promotes nGPX4 degradation, increasing ferroptosis susceptibility. Conversely, in <em>TP53</em>-wild-type t...
Researchers at Stanford University have identified a new type of immune cell called ruptoblasts in flatworms, which can kill surrounding cells through an explosive process called ruptosis. This discovery could hold important insights for modern medicine and may lead to targeted treatments for bacterial infections or tumors.
A new CRISPR protein, Cas12a2, has shown potential for killing sick cells while leaving healthy ones untouched. Researchers have tested its effectiveness in destroying cancer cells and virus-infected cells with promising results.
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.
A new study from the University of Minnesota Medical School has identified certain naturally occurring polyunsaturated lipids that selectively induce death in senescent cells, which are old and damaged cells that accumulate with age. These lipids trigger a process called ferroptosis, which can be used as a potential treatment for age-r...
Cells use a previously unknown molecular mechanism to protect host organisms from disease, revealing a 'beautiful' ring structure on the cell membrane that enables targeted cell death. This discovery has implications for biological resilience, immunity, and potential applications in plant resilience and human medicine.
Copper metabolism plays a crucial role in inflammatory bone diseases, with copper overload suppressing glycogen synthesis and increasing inflammatory activity. Researchers found that cuproptosis, a form of programmed cell death, can lead to bone weakening and osteoclast formation, providing a potential new therapeutic target.
Researchers summarize itaconate biology highlighting its chemical reactivity and therapeutic potential in treating infectious diseases, sepsis, autoimmunity, neurodegenerative disorders. Itaconate exerts biological effects through post-translational modifications, altering protein activity and signaling pathways
Researchers at Helmholtz Munich uncovered a mechanism that protects nerve cells from premature cell death, known as ferroptosis. A single mutation in the GPX4 gene disrupts its function, leading to severe neurodegeneration in children with early-onset dementia.
Australian researchers have discovered a drug combination that can bypass the cellular defenses developed by neuroblastoma tumors, making it more effective against relapsed cases. The combination reduces tumor growth and extends survival time compared to standard treatment alone.
Researchers at the University of Tokyo have developed a new microscope that can detect signals over an intensity range 14 times wider than conventional microscopes, enabling label-free observations of cells and particles.
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.
A team of researchers from Aarhus University has discovered a protein called VCAM1 that can predict whether kidney cells will survive or die after acute injury. The finding could lead to the development of targeted treatments and benefit millions of patients worldwide.
Researchers explore ZBP1-mediated programmed cell death, its mechanisms, and therapeutic strategies for systemic diseases. The review also discusses ZBP1's involvement in various types of cell death, including apoptosis, necroptosis, pyroptosis, and ferroptosis.
Scientists discovered that the APOE4 gene blocks brain cells from using alternative energy sources as we age, significantly increasing Alzheimer's risk. This knowledge could pave the way for new treatments by targeting lipid metabolism.
Researchers identified Phaedra1 as a gene essential for stress-induced cell death in Drosophila melanogaster. The mTOR-Zeste-Phae1 pathway controls lethal stress-dependent individual death. Suppressing this pathway increases survival rates after exposure to lethal stress.
Researchers discovered PRMT5 regulates ACSL4 methylation, which promotes ferroptosis in renal cell carcinoma. Inhibiting PRMT5 increases ferroptosis and enhances immunotherapeutic treatment efficacy.
A team of researchers from the University of Ottawa has developed a new workflow to study autophagy, a fundamental cellular mechanism that preserves cell health by recycling and degrading worn-out components. The study reveals novel signaling mechanisms regulating autophagy in response to numerous disease-related stress conditions.
A team of scientists has developed a protein-based therapeutic tool called Crunch to target and remove specific living cells, such as cancer cells or overactive immune cells. The new system uses the body's natural waste removal system to clear out unwanted cells, offering hope for improved treatments.
Researchers identified a new strategy to repair damaged heart tissue by reactivating the PSAT1 gene through synthetic modified messenger RNA. The study found that mice treated with PSAT1-modRNA showed robust increases in cardiomyocyte proliferation, reduced tissue scarring, and improved heart function.
Researchers discovered a compound, EPS3.9, produced by deep-sea bacteria that triggers pyroptosis to inhibit tumor growth and exhibit potent anti-cancer effects. The study highlights the importance of exploring marine microbial resources for developing new drugs.
This study identifies ANXA2+ migratory hepatocytes as crucial for liver regeneration, highlighting their role in promoting wound closure and treating acute liver failure. The research also explores the therapeutic potential of targeting these cells, offering new avenues for regenerative medicine approaches in hepatology.
Chemotherapy-induced pyroptosis in bladder cancer can actually make the disease more resistant to treatment by fueling cancer stem cells. Blocking this inflammatory process with belnacasan may overcome chemoresistance in preclinical models.
Research on MCL-1 protein reveals its critical role in cell survival and energy production, offering a roadmap for designing targeted cancer therapies with reduced side effects. The findings also shed light on fatal metabolic diseases in infants, providing potential new targets for future treatments.
Some precursor plasma cells in patients with MGUS and SMM enter cellular senescence, a dormant state that prevents cancer progression. In contrast, patients who develop bone marrow cancer lack this protective mechanism. The discovery offers hope for early intervention and potential treatments that promote or inhibit senescence.
A study has discovered a connection between ferroptosis, a type of iron-dependent cell death, and inflammatory bowel disease. Lipid ROS activate ferroptosis, which drives cell death in the colon lining, and inhibiting this process may lead to new treatment options for IBD.
Researchers have discovered a novel cell-clearance pathway linked to diseases such as Chediak-Higashi Syndrome, which affects immune system function. The study used CRISPR/Cas9 gene-editing technology and live imaging to characterize this pathway and identify key genes involved.
Researchers argue that necrosis, a form of uncontrolled cell death, presents an opportunity for intervention in age-related conditions. Interrupting necrosis could lead to new treatments for kidney disease, cardiac disease, neurodegeneration, and aging.
Researchers from Queen Mary University of London and the University of Dundee have discovered how microtubules decide whether to grow or shorten, a fundamental mechanism governing cellular processes. This breakthrough sheds new light on cell division and opens potential avenues for cancer treatment.
A new study suggests that a drug used to prevent alcohol abuse can also interrupt runaway cell death and inflammation triggered by severe trauma, particularly in female mice. The findings may lead to therapies that could shorten hospital stays and improve survival rates if administered promptly after traumatic injuries.
A team of researchers has discovered a small molecule that can selectively block cell death, which could lead to new treatments for neurodegenerative conditions. By targeting the killer protein BAX, the molecule can prevent excessive cell death in neurons, potentially slowing or halting disease progression.
Researchers from Kyushu University found that lipid peroxidation of lysosomes plays a key role in ferroptosis-mediated cell death, leading to iron leakage and membrane permeabilization. Administration of chloroquine promotes ferroptosis even in cancer cells less susceptible to the process.
A study analyzing 17,500 individuals found that immune resilience counters factors of aging and mortality through TCF7 gene regulation, reducing mortality risk by 69% in midlife. This promotes salutogenesis, actively fostering health and well-being.
A small protein involved in neurodegeneration leading to Parkinson's disease also drives a type of skin cancer known as melanoma, according to new research. The study suggests new avenues for drug development to reduce the risk of developing both diseases by targeting alpha-synuclein.
Researchers found that gasdermin D promotes atrial arrhythmogenesis by facilitating the formation of pores in cell membranes and releasing cytokines. A mitochondrial-targeted therapy approach may prevent AF triggering, positioning gasdermin D as a promising therapeutic target.
Researchers at Doshisha University reveal that 25-hydroxycholesterol causes a specific type of cell death called ferroptosis, which could contribute to various diseases. The study identifies two key mechanisms by which 25-OHC induces ferroptosis, including inhibition of cellular pathways and disruption of antioxidant systems.
A synthetic retinoic acid-inducible gene I (RIG-I) agonist RNA has been shown to induce innate immune signaling and death of hepatocellular carcinoma cells in vitro. The addition of recombinant interferon-b potentiated this cell death, suggesting a potential new mechanism for treating patients with liver cancer.
A fungal infection has been shown to trigger a fruit fly's own immune system to destroy brain cells leading to signs of neurodegeneration. The fungus makes the fly's innate immune system release Sarm, which suppresses the immune response and kills brain cells.
Researchers identified two venom genes in parasitoid wasps that degrade adult tissue precursors in host fly larvae, ensuring successful parasitism. The findings provide insights into the molecular mechanisms behind the sophisticated survival strategy of these wasps.
Researchers from Osaka University found that selenoproteins are essential for counteracting lipid peroxides and maintaining hematopoiesis in human cells. The study also showed that dietary Vitamin E can protect hematopoiesis and repair impaired B cell differentiation, providing potential strategies for fighting age-related diseases.
Researchers discovered that cells caught up in sepsis send out messages to other cells, causing them to die and fueling the spiraling inflammation. By understanding this process, scientists may be able to develop a treatment for inflammatory diseases like sepsis.
Regular aerobic exercise has been shown to significantly reduce disease markers associated with Alzheimer's, protecting healthy brain cells and restoring balance in the aging brain. The study highlights the potential for aerobic exercise to serve as a cornerstone in preventive strategies for Alzheimer's.
Researchers discovered that DNA repair determines how cancer cells die following radiotherapy, with specific pathways triggering cell death noticed by the immune system. Blocking these pathways can force cancer cells to die in a manner that alerts the immune system, leading to new potential treatments.
Physical signals from mechanical forces play a crucial role in determining the fate of cells being extruded from tissues. The study reveals that the intensity and duration of these forces determine whether dead or live cells are eliminated, with implications for tissue homeostasis and cancer progression.
Macronucleophagy helps maintain cell viability in nitrogen-starved yeast by modulating micronucleophagy. Uncontrolled micronucleophagy causes cell death, but a critical role for macronucleophagy was found to prevent this.