Articles tagged with Cell Death Pathways
A research team at the University of Oklahoma has developed a new approach to triggering an adaptive immune response. The study presents a method to create molecules that can integrate into cells, cause stress on their membrane, and release signals that recruit immune cells to their location.
Research led by Drs. Yuhai Zhao and Walter J Lukiw reports a pathway from the gut to the brain that contributes to Alzheimer's disease development. Adequate dietary fiber intake can prevent this process. The study suggests a potential means to modify the abundance of microbes in the microbiome.
A study reveals that an ADAR1 gene mutation activates ZBP1 protein, leading to programmed cell death and inflammatory responses. This causes damage to organs like the kidneys and liver in genetically modified mouse models.
Researchers at Johns Hopkins Medicine identified a chemical compound that stops the final events in the pathway linked to brain cell death in Parkinson’s disease. The compound, PAANIB-1, blocks the protein parthanatos without affecting its other critical activities, potentially halting neurodegenerative progression.
Researchers found that ZBP1, a gene involved in innate immunity, contributes to negative effects of interferon treatment and high interferon levels in some COVID-19 patients. Deleting the gene Zbp1 in mice infected with coronavirus prevented cell death and mortality during interferon therapy.
A study found a shift in the profile of specialized lipid mediators from pro-resolving to pro-inflammatory in patients with cognitive impairment, correlating with severity of cognition impairment. The researchers identified novel mechanisms of brain health and potential therapeutic targets for slowing down Alzheimer's disease onset.
Researchers have found a possible target for ALS treatment in astrocyte abnormalities. Astrocytes, a subtype of cells in the central nervous system, are involved in motor neuron death, leading to muscle weakness and paralysis. The study offers hope for developing new drugs to block this process.
Researchers at the University of Cologne have identified a new direct link between proteins BAX and DRP1 and apoptosis. The study reveals that DRP1 can serve as a direct cell death activator by binding to BAX, potentially leading to new cancer therapies.
Researchers have discovered a new pathway of cell death, lysoptosis, which can be triggered in cervical cancer cells by the absence of SERPINB3 protein. This process is different from apoptosis and can be activated by chemotherapy and radiation stress.
Researchers at CNIC have identified the essential role of GPR126 in placental development, revealing its critical function in fetal growth and viability. The study also highlights a possible link between GPR126 dysfunction and pregnancy complications such as preeclampsia.
A study by University of South Florida Health researchers suggests that fenchol, a natural compound in basil, can help reduce neurotoxic amyloid-beta in the brain. Fenchol stimulates FFAR2 signaling, reducing senescent neuronal cells and increasing Aβ degradation.
Researchers found that COVID-19 patients with high blood sugar levels were more likely to develop severe lung dysfunction, require mechanical ventilation, and die. The study also suggests that SARS-CoV-2 may disrupt fat cells' production of adiponectin, a hormone regulating blood sugar levels.
The study reveals that MK2 protein levels act as a molecular indicator for cell survival or death, with higher levels associated with cell death and lower levels linked to survival. Moderate stress triggers temporary activation of the p38-MK2 pathway, allowing cells to recover.
Researchers discovered a protective mechanism where dying cells activate the EGFR-ERK pathway in neighboring cells, preventing simultaneous cell death. This mechanism ensures tissue integrity and connectivity.
Researchers discovered that farnesyl pyrophosphate, an intermediate in normal cell metabolism, causes rapid and extensive cell death when present at high concentrations outside cells. Inhibition of TRPM2 channels or targeting its metabolic pathway may offer new avenues for reducing stroke damage.
A recent study published in Toxicological Research & Application compared the effects of vape aerosol and cigarette smoke on human lung tissue. The research found that exposure to vape aerosol had a minimal impact on gene expression compared to combustible cigarettes.
The cGAS-STING pathway plays a central role in immunosurveillance, coordinating immune cell recruitment to destroy transformed cells through cellular senescence or cell death programs. Chronic activation of this pathway can lead to inflammation-induced carcinogenesis, cautioning against its use as an anti-tumor immunotherapy.
University of California San Diego School of Medicine researchers identify a molecular pathway that allows nonalcoholic steatohepatitis (NASH) to progress into liver cell death. They found that suppressing AMPK and increasing caspase-6 activity can stop progression from fatty liver to NASH and subsequent liver cell death.
Researchers have deciphered the molecular events that convert inactive NLR molecules into active complexes providing disease resistance. The study focuses on protein ZAR1, which interacts with multiple 'guardees' to recognize unrelated bacterial effectors and induces cell death through a unique structure.
EDS1 protein partners with PAD4 and SAG101 to promote reprogramming of gene expression and localized cell death, carrying out a crucial link between recognition and resistance in plant immunity. A key surface on EDS1 enables its functions, promoting salicylic acid accumulation and blocking bacterial virulence molecules.
A multidisciplinary international team of scientists solved the mystery of ferroptosis, a type of controlled cell death that uses iron to safely destroy and recycle malfunctioning cells. The study aims to develop potential therapies for conditions like radiation injury, cancer and radiation-induced cellular damage.
Researchers identified FHY3's role as a transcriptional repressor in flower development, promoting FM determinacy. FHY3 regulates WUSCHEL and CLAVATA3 expression, and interacts with photomorphogenesis genes.
A new study has revealed multiple leads for pursuing potential treatments for Alzheimer's disease by targeting a structural flaw in brain cells. The researchers found that the tau protein aggregates in the brains of patients disrupt the lamin nucleoskeleton, leading to DNA relaxation and gene activation.
A study reveals CHOP/GADD153-dependent apoptosis is driven by micro-RNA miR-216b expression in response to endoplasmic reticulum stress, with significant implications for various diseases. The findings provide molecular insights into the role of CHOP in regulating cell death and have potential applications for novel therapies.
Scientists at St Jude Children's Research Hospital discovered a new pathway for mitochondrial cell death involving the BCL-2 ovarian killer protein. This mechanism is linked to cellular stress and may lead to new cancer treatments.
Researchers at LMU Munich uncover the mechanism by which crystalline deposits induce cell death, revealing a regulated process leading to necroptosis and inflammation. This discovery offers new targets for therapies and potentially improves treatment of conditions like gout and atherosclerosis.
Researchers at Mass Eye and Ear discovered that the alternative complement pathway exacerbates photoreceptor cell death after injury, but blocking it can protect photoreceptors. Inhibition of this pathway offers a new therapeutic target to prevent initial photoreceptor loss.
Researchers discovered a control switch for the unfolded protein response (UPR), a cellular stress relief mechanism involved in various diseases. The UPR pathway can trigger cell death if stress is not resolved, but the discovery of this control switch may open new drug development avenues to prevent excessive cell death.
Researchers at the Walter and Eliza Hall Institute discovered that inflammatory skin diseases such as psoriasis are linked to abnormal apoptosis, while necroptosis is associated with systemic inflammation. This finding could lead to the development of new treatments for these conditions.
A study at Massachusetts General Hospital identified nitric oxide's impact on SIRT1 protein, which regulates inflammation in various aging-related disorders. Blocking nitric oxide effects may disrupt this inflammatory process and prevent conditions like diabetes, atherosclerosis, and Parkinson's disease.
The study investigates DJ-1's role in the oxidative stress cell death cascade after stroke, revealing its importance as an anti-oxidative stress therapeutic target. DJ-1 translocation to mitochondria may mitigate mitochondrial injury and promote neuroprotection.
A new study has identified molecules that send detrimental signals in preeclampsia patients, which may lead to poor health outcomes in babies born to mothers with the syndrome. The researchers found that these molecules are associated with increased risk of disease later in life.
Scientists have identified a biological pathway linking Gaucher disease and Parkinson's disease. The connection is attributed to the accumulation of defective proteins, leading to an overload of cellular machines that dispose of defective proteins. This cascade triggers cell death in dopamine-producing cells, resulting in PD symptoms.
A team from IRB Barcelona discovered Mitofusin 2 plays a crucial role in measuring cellular stress levels. Removing Mfn2 leads to disrupted stress response pathways, reducing the capacity of cells to overcome stress.
Scientists have identified a protein called MLKL that plays a crucial role in triggering programmed cell death, known as necroptosis. The discovery could lead to the development of new treatments for chronic inflammatory diseases such as Crohn's disease and rheumatoid arthritis.
A study published in PLOS Biology reveals how death spreads through an organism like a wave, using blue fluorescence as a visual cue. The researchers found that a specific chemical pathway called necrosis is responsible for this process, which is dependent on calcium signalling.
Researchers identified a novel signal transduction pathway that activates parkin and prevents stress-induced neuronal cell death in Parkinson's disease. The parkin gene plays a crucial role in maintaining mitochondrial integrity, which is essential for preventing cell death.
Researchers develop method to reprogram T-cells involved in autoimmune diseases by attaching pancreatic protein to red blood cells, eliminating symptoms of type I diabetes in mice. The approach aims to minimize risks and side effects while targeting specific immune cells involved in the disease.
Researchers at UNC Health Care have discovered a prime suspect for new cancer drug development: the CIB1 protein. Decreasing CIB1 in cancer cells causes cell death, but the exact mechanism was unknown until now.
Researchers have identified a specific cell-stress signaling pathway that links optic nerve injury to irreversible vision loss. The unfolded protein response (UPR) pathway was found to be activated in response to axonal damage, leading to pro-cell-death effects.
Researchers from the Walter and Eliza Hall Institute have identified a 'programmed cell death' pathway in parasitic worms that could one day lead to new treatments for schistosomiasis. The discovery was made by studying programmed cell death in human cells, where the team found similarities with the process in fluke worms.
Researchers at University of Western Ontario discovered how biochemical pathways can be rewired in cancer cells to resist apoptosis, a key process in normal cell turnover. This 'rewiring' allows cancer cells to ignore death signals and potentially evade therapy.
Activated NK cells can excessively down-modulate the antiviral immune response in chronic HBV patients. Blocking the TRAIL pathway partially reconstitutes HBV-specific T cells, suggesting their vulnerability to apoptosis through this death ligand pathway.
Researchers at Cedars-Sinai Medical Center have created a new molecule from curcumin, a key spice in Indian and Southeast Asian cuisine, that affects mechanisms protecting and helping regenerate brain cells after stroke. The compound, CNB-001, crosses the blood-brain barrier and moderates critical pathways involved in neuronal survival.
Researchers expanded a method to move proteins inside cells to specific organelles, enabling rapid manipulation of protein activities. By studying the signaling protein Ras, they gained insights into how proteins contribute to cellular responses and signal division and growth.
Biomedical scientists identify a way to block the 'cell death signal' that triggers brain damage during strokes. The discovery could lead to new therapeutic targets for stroke therapy and potentially improve treatments for other neurodegenerative diseases.
Researchers at Washington University School of Medicine have identified a rare immune cell, NK-22 cells, that can produce IL-22 to promote wound healing and prevent tissue damage. This discovery may lead to the development of new therapies for inflammatory bowel diseases such as Crohn's disease and ulcerative colitis.
A study by the University of Washington researchers found that infections and toxins can activate caspase-1, an enzyme involved in both beneficial apoptosis and harmful pyroptosis. This activation leads to inflammation and can be detrimental to vital tissues, but also plays a role in resistance to infection.
Researchers at Duke University have developed a new method to model the genetic pathways underlying cancer, identifying connections between gene sets. The study reveals that specific gene sets work together to support cancer development and progression.
Researchers discovered that damaged motor neurons in ALS send incorrect signals, triggering an immune cell response that accelerates their own death. This finding offers a new approach for therapies targeting the motor neurons themselves.
Research from Rockefeller University reveals that unfolded protein response serves a protective role, shielding cells from death. The study focuses on autosomal dominant retinitis pigmentosa, where unfolded proteins accumulate in the endoplasmic reticulum, indicating their protective mechanism.
Researchers found that TRAIL can enhance hepatocyte cell death initiated by signaling through Fas, potentially leading to liver damage. The study has important clinical implications as liver cells expressing Fas are present during inflammation.
A recent study found that nitric oxide, normally considered protective against atherosclerosis, can be converted into peroxynitrite, causing cell dysfunction and death. This reaction activates the ER stress response pathway, leading to devastating cytotoxic effects and accelerating atherosclerosis.
A study published in Cancer Cell reveals that combining therapies targeting EGFR and Akt can improve treatment outcomes in tumor cells with PTEN mutations. The research demonstrates that BAD acts as a key switch integrating antiapoptotic effects of multiple pathways, providing new insights into combination therapy strategies.
Researchers have identified a protein called CCL5 that protects macrophages from premature death during respiratory viral infections, allowing them to continue fighting the infection. This discovery may lead to new methods to hasten recovery and reduce symptoms of influenza and the common cold.
Johns Hopkins researchers have found that modern implanted heart devices are safe for use in magnetic resonance imaging (MRI) machines. The team has also developed new guidelines for their use, making MRI scans more available to people who may benefit from early detection of cancer and other diseases.
Researchers developed a model linking Huntington's disease mutation to cell death, revealing calcium signaling as a key defect. A new drug, enoxaparin, prevented inappropriate calcium release and cell death in mouse neurons carrying the mutant huntingtin gene.
A study found that targeting the Pak1-DLC1 interaction can prevent breast cancer growth. The researchers discovered that when DLC1 is modified, it interferes with cell death signals, allowing cancer cells to survive and multiply.
The JAK2 enzyme plays a dual role, protecting brain cells from Alzheimer's disease and blocking cell death pathways. However, it also causes damage to blood vessels in diabetics, leading to hypertension, kidney failure, and other age-related diseases.
Researchers have made a significant discovery about the role of hydrogen peroxide in cellular signaling, which could lead to new avenues for cancer research. The study found that hydrogen peroxide plays a key role in signaling cells to divide or die, with potential applications for anti-cancer therapies.