Articles tagged with Cell Apoptosis
A new study reveals that high-pressure processing increases the concentration of total carotenoids in avocado and papaya by more than 50 percent. Individual members of this healthful family of chemicals increase by up to 513 percent, suggesting a self-defense mechanism in fruit tissue.
Researchers found that cardiologists' constant exposure to ionising radiation causes cellular changes, including increased antioxidant levels and apoptosis susceptibility. These changes may be the body's protective response to harmful radiation effects.
Researchers at Brigham and Women's Hospital have demonstrated the direct participation of IgE in atherogenesis in a mouse model. IgE stimulates macrophage and vascular smooth muscle cell apoptosis, leading to increased atherosclerotic lesions. Anti-IgE monoclonal antibodies may become a novel therapy for atherosclerosis.
New study reveals that programmed cell death is involved in mandibular regression in termites. During termite development, body form and structure change, including the formation of defensive organs like the nasus and regressed mouth parts.
Researchers at IDIBELL found that Nutlin-3a stimulates the p53 pathway, inducing apoptosis and cellular senescence in brain cancer cells. This study suggests MDM2 antagonists may be new therapeutic options for glioblastoma treatment.
Researchers discovered a new way to combine anti-cancer drugs, using Gamitrinib to sensitize tumor cells to TRAIL. This combination approach kills glioblastoma cells in both mouse models and human glioblastoma cells, offering a potential treatment for aggressive brain cancer.
Researchers found that PUMA protein induces apoptosis in intestinal epithelial cells, leading to inflammation and UC development. Increased PUMA levels were detected in diseased tissues of UC patients, suggesting its potential as a therapeutic target.
Forced splicing of p21Cip1 gene leads to its down-regulation and induction of programmed cell death in cancer cells. This finding suggests new approaches to enhance chemotherapeutic drug efficacy by inhibiting splicing.
A UCSF team has developed a new model for how inherited genes contribute to frontotemporal lobar degeneration, a neurodegenerative disease. The study suggests that progranulin regulates the speed of dying cells being cleared from the brain.
Caspase 8, long viewed as an executioner of cellular suicide, has a surprising dual function: initiating apoptosis and restraining an independent programmed death pathway. The enzyme's absence can be compensated by RIP3, allowing mice to develop normally and potentially offering new therapeutic avenues for diseases.
Researchers have discovered a compound, ABT-737, that sensitizes hypoxic cancer cells to apoptosis. This compound synergizes with conventional chemotherapeutic agents in tumor-bearing mice, suggesting improved treatment of solid tumors.
The study found that octreotide induces caspase-mediated apoptotic pathway in HepG2 cells, supporting a receptor-mediated and mitochondrial-apoptotic pathway. This suggests that measurements of serum octreotide levels may be important for verifying optimal therapeutic drug concentrations.
Researchers have identified a link between mitochondrial fusion and a cell death pathway, with implications for treating heart disease and stroke. The study found that the proteins MFN1 and MFN2 regulate mitochondrial behavior, promoting or preventing apoptosis, depending on their combination.
Researchers have developed a new microscopy technique, electrochemical impedance microscopy (EIM), that can explore subtle features of cell adhesion, apoptosis, and electroporation. EIM provides sub-micron spatial resolution and is label-free, making it non-invasive to samples.
Researchers at UNC Health Care have discovered a molecule, microRNA-29, that can make brain cells resistant to programmed cell death or apoptosis. This breakthrough could lead to new treatments for neurodegenerative illnesses like Alzheimer's disease and Huntington's disease.
A study discovered a microRNA-TP53 circuit that explains the link between chromosome deletion and less aggressive forms of CLL. MicroRNAs miR-15a and miR-16-1 inhibit tumor-suppressing gene TP53, while its increased expression leads to indolent CLL. This mechanism may also contribute to chemotherapy resistance.
Researchers found that silencing the TLR4 gene can prevent hyperglycemic cardiac apoptosis in diabetic mice, highlighting the potential clinical use of siRNA-based therapy. The study demonstrated that TLR4 plays a critical role in cardiac apoptosis and that its silencing can suppress apoptotic cascades.
Scientists have found that chronic lymphocytic leukemia (CLL) cells become resistant to chemotherapy by growing among normal cells in the bone marrow and lymph nodes. This resistance is linked to alterations in Bcl-2 family proteins, which makes CLL cells less susceptible to treatment.
A recent study by Dr. Nan Yao and his team found that carbon nanotubes induced programmed cell death in plant cells, with the effect being dosage-dependent. The researchers discovered that only single-wall carbon nanotubes caused cell damage, while other types of particles did not.
Researchers found that the Reaper protein triggers apoptosis by interfering with inhibitor of apoptosis proteins and delivering its death sentence to the mitochondria. By targeting the protein to the mitochondrial membrane, it can be made more effective at killing cells, providing a potential new approach for cancer treatments.
Researchers at Rockefeller University identified a gene called Sept4 that regulates programmed cell death in precursor cells, which can increase the risk of developing cancer. The study found that mice lacking the Sept4 gene had twice as many hematopoietic stem cells and were more susceptible to tumors.
Researchers from the Walter and Eliza Hall Institute have discovered a new cell survival protein, Mcl-1, essential for creating and maintaining B cell memory. This finding contradicts existing theories and has implications for cancer treatment and autoimmune disease.
Researchers at the Walter and Eliza Hall Institute are investigating different aspects of parasite biology, with a focus on developing new treatments. Dr Chris Tonkin is studying Apicomplexan parasites to understand their invasion mechanisms and identify potential targets for drugs.
Researchers at Ohio State University Comprehensive Cancer Center have identified a targeted agent that promotes cell death and disrupts survival pathways in CLL cells. The agent blocks PI3K-delta, an isomer of the PI3K pathway required for hematopoietic cell functions.
Scientists have discovered that neuroglobin protects cells from stroke damage, amyloid toxicity, and lack of oxygen. High levels of neuroglobin in brain neurons may buffer them against the effects of Alzheimer's disease-causing protein accumulation.
Researchers discovered galangin induces apoptosis in HCC cells through a mitochondrial pathway, modulating key proteins. The study suggests galangin may be a future treatment option for HCC, offering new hope for patients with this challenging cancer.
Researchers developed a biophotonic imaging approach to monitor cellular transformations during apoptosis, providing a dynamic mapping of molecular changes. This allows for precise targeting of chemotherapy and improved understanding of disease progression.
Researchers at NUI Galway have discovered a protein that enables cancer cells to withstand intense stress. Understanding this interaction could lead to the development of more effective anticancer drugs by blocking its function and encouraging tumor cell death.
Scientists at Dana-Farber Cancer Institute found a way to disable MCL-1 protein, a common obstacle to chemotherapy treatment. The discovery suggests a new approach to target MCL-1 and make standard cancer drugs effective again.
Researchers found that monocyte-derived cells can induce myocardial protection by reducing cardiac cell apoptosis and enhancing endothelial cell proliferation. The cells also secrete growth factors with anti-inflammatory properties, which help protect heart tissues from programmed cell death.
Researchers at University of Illinois College of Medicine found that adding ARC to anti-cancer agent ABT-737 makes it effective against a wide range of cancers. The combination of agents shows tremendous synergy, reducing the dose required while lessening side-effects.
A University of Arizona study found that spaceflight alters gene expression in mice, potentially leading to increased cell death and compromised immune systems. The research suggests that long-duration space missions to destinations like Mars may require new strategies to mitigate these effects.
Researchers found that four caged xanthones significantly inhibit CCA cell lines by increasing apoptosis-promoting proteins and decreasing apoptosis-inhibiting proteins. The compounds' chemical structure diversity reflects their biological activities, with isomorellinol exhibiting the highest potential.
Researchers found that strenuous exercise like running a marathon shifts the balance between pro- and anti-apoptotic genes, potentially halting cellular suicide. The study suggests that sirtuin proteins may play a key role in this process, offering new insights into the effects of exercise on cell death.
Researchers found that taurine inhibits the activation of hepatic stellate cells (HSCs) and promotes apoptosis in liver cells. This study provides new targets for managing hepatic fibrosis and drug development.
A phase II study found GS-9450 significantly reduces levels of alanine and aspartate aminotransferases in patients with non-alcoholic steatohepatitis. The treatment also showed promising results in terms of tolerability profile, suggesting its potential as a new treatment option for NASH.
Researchers have discovered that two cell protection programs work together to prevent tumors, with the Myc oncogene triggering apoptosis and senescence. The findings suggest a new approach to treating cancer by inducing senescence through chemotherapy.
A team of researchers at the University of Colorado Boulder has discovered a previously unknown cellular switch that can be used to trigger programmed cell death. This process, known as apoptosis, is essential for preventing human diseases like cancer and autoimmune disorders. The study found that caspase, a well-known enzyme involved ...
Scientists at University of Zurich, Switzerland discover approach to resensitize multidrug-resistant ALL cells to glucocorticoids and other cytotoxic agents. Treatment with obatoclax induces autophagy-dependent necroptosis, bypassing mitochondrial apoptosis block.
Using hydrogels to deliver small interfering RNA (siRNA) into cancer cells has been shown to effectively target and kill them. The technique inhibits EGFR growth, increasing programmed cell death and enhancing the effects of traditional chemotherapy.
Researchers have identified NT-3 and its binding molecule TrkC as potential therapeutic targets for treating neuroblastoma. The study found that blocking the interaction between NT-3 and TrkC inhibited tumor growth and metastasis in animal models.
Researchers at Yale University have found that progesterone prevents apoptosis in fetal membranes, reducing the risk of preterm birth. Progesterone supplementation from weeks 16-20 may also prevent premature rupture of the fetal membranes.
A study by University of Cincinnati researchers found that proapoptotic peptide treatment reduced food intake and fat loss in obese mice and rats, without affecting energy expenditure. The findings suggest a novel system informing brain activity about fat tissue size, influencing appetite and weight regulation.
Researchers have identified a crucial step in apoptosis, a process that removes unwanted cells to prevent cancer development. Understanding the role of proteins Bak and Bax could lead to the development of drugs regulating cell death, with potential applications in treating cancer and degenerative disorders.
A cancer researcher has identified a protein called RanBPM that regulates apoptosis, a process by which damaged cells self-destruct. The discovery has implications for both diagnosing and treating cancer, as it may enable targeted therapy to reactivate apoptosis and kill cancer cells.
Dr. Larisch's research links Parkin and ARTS proteins to excess brain cell death in PD, a progressive neurodegenerative disorder. This discovery may lead to better treatment of patients suffering from Parkinson's Disease.
Scientists have discovered that the protein PARP-1 plays a crucial role in activating the transcription factor NF-kappaB, which triggers a survival program that blocks programmed cell death. This activation is thought to be one of the potential causes for tumor cell resistance to chemotherapy and radiation therapy.
A new study has identified a gene essential to age-related hearing loss, which is linked to oxidative stress and programmed cell death. The researchers found that oral antioxidants can prevent the condition, providing hope for future treatments.
Researchers from UNC Health Care have discovered a crucial link between the synthesis of histone messenger RNA and apoptosis, a normal biochemical response to cell damage. The study identifies FLASH protein as essential for producing histone proteins, which regulate gene expression.
A study published in International Journal of Low Radiation found that extracts of Ginkgo biloba leaves can protect human white blood cells from gamma radiation-induced apoptosis. The results suggest that the antioxidant compounds in Ginkgo biloba extract can neutralize free radicals and prevent cellular damage.
Researchers found Chrysanthemum indicum extract inhibits cancer cell proliferation and induces apoptosis in hepatocellular carcinoma cells. The extract also arrests the cell cycle by regulating key proteins, suggesting its potential as a novel cancer treatment.
An international research team has discovered a common genetic program for programmed cell death in plants and animals, which is evolutionarily related and functions similarly. This finding highlights the importance of comparative studies across different species to understand fundamental cellular mechanisms.
A decade-long debate has been resolved with the discovery that membrane-bound Fas ligand is essential for programmed cell death, protecting against cancer development and autoimmune diseases. Conversely, excessive secreted Fas ligand promotes tumour growth and autoimmunity.
Research shows prolonged stress can induce cell death in aging-related diseases like atherosclerosis and neurodegeneration by triggering the endoplasmic reticulum (ER) to release calcium stores. ER proteins ERO1-alpha and IP3R play a crucial role in this process, suggesting potential new targets for treatment.
The study reveals that the hepatitis C virus blocks the actions of an ion channel, preventing apoptosis and enabling liver cells to resist cell death for longer. This discovery may offer a potential target for drug development through combination therapy.
Researchers have discovered how the DISC complex triggers cell death or survival by switching key molecules' activity levels. Stopping the DISC from functioning properly prevents efficient cell death, resulting in disease conditions like ALPS.
Researchers have found that blocking a key enzyme, aldose reductase, can significantly reduce asthma symptoms. The discovery opens the way for human trials of a new treatment, which could provide a badly needed alternative to existing therapies.
Scientists have demonstrated a direct link between the death of old neurons and their replacement by newly born ones in a living vertebrate. The study found that introducing a chemical inhibitor to slow apoptosis resulted in fewer new neurons being formed, providing insights into age-related diseases.
Research led by St. Jude Children's Research Hospital scientists shows that switching off a key DNA repair system in the developing nervous system is linked to smaller brain size and problems with movement, memory, and emotion. The study provides new insights into the role of DNA damage response in preventing neurological disease.
Researchers at Burnham Institute for Medical Research identified Caspase-8 as a key player in promoting cancer cell proliferation and migration. The study found that Caspase-8 activates the MAPK pathway through Src, leading to increased cell division and invasion.