Articles tagged with Mitochondrial Membranes
A study by IRCCS Fondazione Istituto Neurologico Carlo Besta and Politecnico di Milano demonstrates that innovative materials can coat mitochondria without compromising their function. The coating method retains the mitochondria's ability to produce energy.
Researchers discovered that declining cardiolipin levels in aging muscle mitochondria trigger a defense mechanism to protect cells from ROS damage. By mimicking this decline in young mice, they found that restoring cardiolipin levels can reverse muscle wasting and prevent early deaths.
A research team discovered that leucine prevents the degradation of specific mitochondrial proteins, enabling efficient energy production. This mechanism allows cells to adapt to increased energy demands during periods of nutrient abundance.
The congress brings together experts to explore mitochondria's role in cellular dynamics, metabolic control, and therapeutic targets. Key findings include the emergence of mitochondria as biological sensors and decision-makers, translating environmental signals into cellular fate.
The 17th World Congress on Targeting Mitochondria will gather world's leading experts from biotechnology, pharma and academia to discuss health, longevity and precision medicine. Over 150 academic and institutional partners and 30 industrial and investment organizations are participating.
The study found that mitochondrial membrane potential (MMP) of CD8+ T cells is a significant predictor of bacterial infection (BI) and acute-on-chronic liver failure (ACLF) in cirrhotic patients. Low MMP levels were associated with increased risk of BI and ACLF.
A new study shows targeted delivery of energy-disrupting gene therapy using nanoparticles shrinks glioblastoma brain tumors and aggressive breast cancer tumors in mice. The technology, mLumiOpto, induces light-activated electrical currents inside cells to disrupt mitochondria, leading to programmed cell death and DNA damage.
Researchers have identified two highly soluble molecules with superior antioxidant benefits for cells, which could help prevent and manage certain degenerative diseases by maintaining lower levels of harmful free radicals. The study suggests that these molecules can transfer and accumulate in membranes, reducing the risk of cell damage.
Researchers discovered that biochemical bonds between fats and proteins in the mitochondrion play a crucial role in cellular energy production. Introducing mutations into a specific protein-lipid interaction weakened its structure and lowered its function.
Researchers at Nagoya University have discovered a relationship between ALS progression and the disruption of mitochondria-associated membranes (MAM) and TBK1 activity. Decreased activation of TBK1 is linked to motor neuron death in ALS patients and mice with disrupted MAM.
Mitochondrial fragmentation is a key mechanism underlying ventilator-induced diaphragm dysfunction (VIDD), leading to excessive reactive oxygen species production and calcium homeostasis impairment. Blocking mitochondrial fission at the initiation of mechanical ventilation with a molecule like P110 could potentially prevent VIDD.
A research team has developed a technology that selectively targets and eliminates aging cells, contributing to various inflammatory conditions. This approach represents a new paradigm for treating age-related diseases with minimal toxicity concerns.
A study published in Neurobiology of Disease suggests that targeting the sigma-1 receptor and ATAD3A protein may prevent mitochondrial dysfunction in ALS. The researchers found that this approach could lead to a novel therapeutic strategy for neurodegenerative diseases.
The study resolves a long-standing question about the structure of respiratory supercomplexes in unicellular eukaryotic organisms. Complex II is found to be part of the supercomplex in these organisms, optimizing ATP formation and revealing a surprising variety in supercomplex construction.
A study by IMBA researchers links muscle degeneration to a deficiency in the enzyme PCYT2, essential for lipid synthesis. PCYT2 depletion affects mitochondrial function and muscle energetics, highlighting the importance of lipid balance in muscle health.
Researchers at Tufts University School of Medicine found that p97 protein mutations can cause organelle miscommunication, leading to the accumulation of molecules on mitochondria-endoplasmic reticulum contacts. This miscommunication can modulate membrane rigidity and impact interorganelle interactions.
Researchers from Osaka University have identified a system known as the GET pathway as crucial for regulating the numbers of energy-producing mitochondria. The study found that disruption of the GET pathway leads to reduced mitophagy, a process responsible for removing defective or excess mitochondria.
Researchers developed a cancer-selective therapeutic agent that targets cancer cells' unique acidic pH microenvironment, inducing mitochondrial dysfunction and killing only cancer cells. The agent, Mito-SA, forms charge-shielded nano-assemblies that selectively disassemble in the tumoral environment.
ATAD3A is crucial for the movement of genetic material inside mitochondria, affecting energy production. The correct distribution of mtDNA nucleoids activates expression of respiratory chain complexes.
Researchers from Tokyo University of Science developed novel complex-peptide hybrids that induce programmed cell death in apoptosis-resistant cancer cells through paraptosis. The compounds, syn-6 and anti-6, inhibit cell death by uncoupling mitochondrial calcium uptake and inducing cytoplasmic vacuolization, leading to cell death.
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 ...
Nikolaos Daskalakis and his team will investigate how mitochondria communicate with the cell nucleus, which stores genetic information. The project aims to understand how disruptions in this communication affect brain function in mental health and disease.
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.
A study by Van Andel Institute scientists found that surplus sugar causes mitochondria to become less efficient, reducing their energy output. A low-sugar ketogenic diet reversed this effect, supporting healthy mitochondrial integrity and function.
A new study uses electron cryo-microscopy to reveal the molecular mechanism of bioenergetic protein synthesis in human mitochondria, revealing a more flexible and active mitoribosome than previously thought. The discovery sheds light on how medical disorders such as deafness and cancer development are linked to mitochondrial function.
Researchers from the University of Groningen developed an algorithm that links large-scale changes to molecular-level simulations, enabling the simulation of a full-sized mitochondrial lipid membrane. This breakthrough allows for whole-cell simulations at a molecular level.
Researchers developed a new method to analyze cell membrane proteins directly, enabling new discoveries on protein function and behavior. This breakthrough could lead to better understanding of diseases such as cancer, metabolic disorders, and heart disease.
Researchers at Ruhr-Universität Bochum have gained new insights into the structure of Bax, a protein responsible for programmed cell death. The team's work, published in Cell Death and Differentiation, sheds light on the dynamics of this protein.
A study by Nagoya University found that collapse of the MAM is a common pathological hallmark in SOD1- and SIGMAR1-linked ALS. This disruption leads to Ca2+ dysregulation, exacerbating neurodegeneration. The researchers suggest targeting MAM disruption for future therapeutics.