Articles tagged with Peroxisomes
Researchers found that preserving peroxisomes preserves mitochondrial health during aging by maintaining long, interconnected mitochondrial networks and reducing oxidative stress. The study identifies peroxisome homeostasis as a promising area for future aging research.
Researchers from Kyushu University discovered that the circadian clock protein BMAL1 drives macrophages towards a pro-inflammatory M1 state by activating inflammatory signaling pathways. This mechanism links the body clock to intracellular metabolism and immune function, offering new insights into treating inflammatory diseases.
New research suggests that ocean turbulence and horizontal stirring will dramatically increase in the Arctic and Southern Oceans due to human-induced Global Warming. The study uses ultra-high-resolution simulations to investigate how mesoscale horizontal stirring (MHS) responds to warming, revealing a pronounced future intensification ...
Researchers have discovered how severe COVID-19 can destroy immune cells' ability to repair the lungs, leading to lingering effects of long COVID. By enhancing damaged organelles using a FDA-approved drug, they found improved lung healing and reduced inflammation.
Researchers at Shinshu University have discovered a key role for the HSR201 protein in salicylic acid production, a vital hormone for plant defense. The study found that HSR201 localizes to peroxisomes and uses a unique targeting signal to produce salicylic acid, which is essential for plant immunity.
A team of researchers at The Hospital for Sick Children discovered a way to potentially reduce toxic cellular waste in patients with Zellweger Spectrum Disorder. By increasing the autophagic limit, they observed improved clearance of cellular waste, offering new pathways for treatment.
Researchers found that 1,5-AF activated AMPK, leading to upregulation of the PGC-1α/BDNF pathway and alleviating aging-related decline in motor cognitive function. The study suggests that 1,5-AF can induce endogenous neurovascular protection, potentially preventing aging-associated brain diseases.
Peroxisomes, like miniature factories, specialize in detoxifying cells by dismantling excess fatty acids and toxic substances. The discovery sheds light on the recycling mechanism of biological nanomachines, AAA-ATPases, which keeps inner cell surroundings clean and functional.
A new study by Rice University bioscientists reveals how plant cells collaborate to fuel growth, shedding light on corresponding mechanisms in human cells. The findings focus on the role of enzyme MIEL1 and its human counterpart PIRH2 in breaking down protein coatings on lipid droplets.
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.
Scientists have identified a new pathway for peroxisome division, independent of Mitochondrial Fission Factor (MFF). The study, led by Professor Michael Schrader, reveals that PEX11β and FIS1 cooperate to divide peroxisomes, restoring normal morphology. This discovery offers potential therapeutic options for diseases caused by defects ...
Researchers have discovered a new mechanism for regulating organelle contacts, essential for producing specific lipids in nerve cells. The study reveals that phosphorylation of a protein at the peroxisomes can block interaction with the endoplasmic reticulum.
Researchers have discovered hidden subcompartments within peroxisomes, long thought to be simple granular matrices. These subcompartments may play a crucial role in the metabolism of fatty molecules and could hold key to understanding diseases like obesity and neurodegeneration.
Researchers found that GPT1 targets both plastids and the endoplasmic reticulum, enabling simultaneous formation of reduction power. The oxidative pentose-phosphate pathway also occurs in peroxisomes, producing NADPH and ribulose-5-phosphate.
A recent study by Professor Michael Schrader and his team has explored the impact of peroxisome alterations on disease. The researchers found that defects in peroxisomal dynamics and division can lead to metabolic disorders, including developmental and neurological abnormalities.
A team of researchers from Ruhr-University Bochum has identified a crucial role for a sixth transport step in the regulation of peroxisome function. The study reveals that this step is essential for maintaining the balance between import and export of enzymes, preventing diseases such as infant mortality
Researchers identify key host-virus protein interactions that enable Zika to evade immune signaling and proliferate. The study provides insight into the viral life cycle and potential targets for antiviral drugs.
Researchers at the University of Bonn found that coconut oil diet significantly increases vitality and lifespan of fruit flies with peroxisomal disorder. The diet dampened cell damage caused by lipase 3 activity.
Janardan K. Reddy, a world-renowned pathologist, has been awarded the ASIP Gold-Headed Cane Award for his significant research contributions to liver biology, particularly peroxisomes and carcinogenesis. He is also recognized for his exceptional teaching and mentoring skills.
Scientists have identified a key role for protein MIRO1 in attaching peroxisomes to molecular motors, enabling movement and membrane dynamics in human cells. This discovery has provided new insights into the molecular mechanisms determining peroxisome number and shape.
Researchers found that peroxisomes are essential for cells to detect and destroy bacterial infections, releasing signals to other organs. This discovery highlights the organelle's role in innate immunity and could inform strategies to combat bacterial infections.
Researchers discover a new link between Zellweger syndrome and sugar metabolism, finding that the condition affects both lipid and carbohydrate pathways. This breakthrough could lead to new treatments for the rare disease.
Researchers at Rockefeller University found that peroxisome positioning plays a crucial role in controlling the balance between stem cell renewal and differentiation. Disrupted peroxisome distribution led to slower cell division, reduced skin cell differentiation, and tissue formation issues in mouse embryos.
Researchers at the University of Exeter have discovered how peroxisomes and endoplasmic reticulum interact at the molecular level, crucial for lipid production and cell survival. Loss of this interaction leads to severe disorders, prompting hope for diagnosis and treatment.
A SickKids-led project explores the effects of severe malnutrition on children's livers, finding that dysfunctional mitochondria and peroxisomes contribute to impaired nutrient utilization. The study identifies a key gene, PEX2, involved in peroxisome loss during starvation.
Researchers found that flaviviruses target peroxisomes to subvert the body's early antiviral defenses. The degradation of protein Pex19 leads to a loss of interferon production, making cells more vulnerable to viral infection.
Scientists have identified a second giant pore in peroxisomes, enabling the transport of folded proteins essential for human life. The discovery sheds light on how these organelles import enzymes and other proteins from the cytoplasm, a process critical for cellular function.
Scientists at Brookhaven National Laboratory have developed a method to increase the oil accumulation in plant leaves, which can lead to higher energy content of crops grown for fuel. The research reveals that disabling a specific enzyme has no negative effects on plant growth and results in high oil accumulation.
Researchers identified a compound called dequalinium chloride (DECA) that can prevent a metabolic enzyme from going to the wrong location within a cell. This prevents primary hyperoxaluria 1 (PH1), a rare and deadly genetic kidney disease, by ensuring the enzyme goes to its proper destination.
Researchers identify Pex22p module as key component in peroxisomal Ub machinery, boosting enzyme import and degradation of pollutants. This discovery sheds light on peroxisomal disorders like Zellweger syndrome and highlights the importance of reevaluating familiar proteins.
Researchers at Rice University have found that motor proteins cooperate differently, with myosinVa producing more force than kinesin-1. This cooperation is crucial for regulating the transport of organelles within cells, and breakdowns in motor function are implicated in human diseases.
Researchers at Ruhr-University Bochum have identified two opposing regulatory circuits that determine the fate of protein import receptor Pex18. The receptor's control is calibrated precisely by distinct ubiquitination cascades, which regulate its recycling or degradation.
Researchers have developed artificial peroxisomes that mimic natural organelles, transforming toxic free radicals into water and oxygen. This innovation enables direct cellular targeting, paving the way for novel patient-oriented treatments.
Researchers at Ruhr-University Bochum found that enzymes are only imported into peroxisomes when their transport proteins are recycled. This discovery supports the export-driven-import model and sheds light on the complex process of protein import.
Researchers at the University of Alberta have developed a multi-cellular model of Zellweger's syndrome, a rare and deadly genetic disease, using fruit flies. The model mimics the human phenotype and is ideal for medical research due to its rapid development and low cost.
Researchers at Ruhr University Bochum discovered a new enzyme, Ubp15p, that collaborates with motor proteins to convert the protein transport machinery back into its initial condition. The enzyme detaches a specific signal sequence from a protein, allowing for recycling and reuse.
Scientists at Virginia Tech uncover how abscisic acid, a natural plant hormone, fights inflammation by interacting with the lanthionine synthetase C-like 2 protein. This alternative mechanism avoids known adverse side effects of existing drugs, paving the way for new treatments.
Peroxisomes, organelles inside cells, can detect virus invasion signals and launch a limited antiviral offensive. Mitochondria follow up with a more definitive counterattack, indicating a potential new approach to rare conditions like peroxisome biogenesis disorders.
Researchers at the University of Alberta have identified a universal mechanism that ensures peroxisomes transfer into cells after division, potentially leading to prevention or treatment of deadly disorders. The discovery has implications for screening carriers and could help babies born with peroxisome disorders survive longer.
UC San Diego researchers have identified a novel protein called Atg30 that controls peroxisome degradation, a process linked to cell growth, aging, and homeostasis. The discovery allows scientists to control this aspect of cellular autophagy, potentially leading to new insights into aging, immunity, neurodegeneration, and cancer.
Researchers have discovered that molecular motors dynein and kinesin do not compete for control when moving cellular cargo, but instead cooperate to produce more than 10 times the speed of individual motors. This cooperative behavior allows the cargo to move faster and with greater precision inside the cell.