Articles tagged with Protein Activation
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Researchers have developed a method to control proteins inside live cells using light, allowing for unprecedented insight into the causes of disease. The technique uses previously inaccessible proteins to create flexible logic networks that can be manipulated in real-time.
Researchers discovered that nanoparticles, resembling caterpillars, trigger immune system activation when internalized. To counteract this detection, three possible strategies are proposed: modifying the coating, understanding absorbed proteins, or attracting natural inhibitors.
Stowers researchers discovered that DNA enhancers engage in an ongoing contest between activation and repression, resulting in a different epigenetic state of histone proteins. This finding clarifies the often misunderstood role of repression in DNA enhancers and its importance as an action.
PARP9 and PARP14 have been identified as regulators of macrophage activation, a key factor in the development of atherosclerosis. The study found that silencing these genes had opposite effects on macrophage activation, with PARP14 increasing and PARP9 decreasing activation.
Researchers at TSRI have identified 79 potential molecules that activate the ATF6 arm of the UPR, a signaling network that enhances editing or protein quality control. The compounds mimic the normal activation of ATF6, leading to the generation of chaperone proteins that can help prevent misfolding events associated with disease.
Researchers found that c-Abl activation accelerates α-synuclein accumulation and motor deficits in Parkinsonian mice. This suggests a potential role for c-Abl in promoting neurodegeneration in Parkinson's disease.
Researchers at the University of Würzburg have developed a new fluorescence probe to visualize the motions of Hsp90, an essential chaperone that assists numerous proteins. The technique reveals synchronized structural changes within the protein, shedding light on its healing powers and potential connection to diseases.
A study by University of Tsukuba researchers reveals that dioxin exposure disrupts AhR signaling, leading to slowed neuron migration and altered brain development. This mechanism may explain abnormal behavioral alterations caused by dioxin exposure in laboratory animals.
Researchers at NCBS discovered Septin 7 as a 'molecular brake' regulating Orai proteins and maintaining dopamine levels. This discovery could lead to therapies for neurodegenerative disorders and immune system dysregulations.
Melbourne researchers have discovered a novel way of directly activating Bak, a protein central to apoptosis, to trigger cell death. This finding holds promise for developing drugs that promote cell death in cancer and autoimmune diseases.
A study by the Wyss Institute team provides a valuable guide to researchers on selecting synthetic Cas9 proteins for gene activation in various cell types. The findings identify top-performing activators and offer strategies to maximize gene expression.
Scientists have created an optogenetic process that inhibits intracellular membrane vesicle trafficking, effectively pausing cellular activity. This innovation enables the observation and control of cell membranes, opening up new avenues for studying diseases like neurodegenerative disorders.
PERK's involvement in neurodegeneration is established through pathologic, genetic, and molecular links to various disorders. Long-term PERK activity triggers pro-apoptotic cascades, while current efforts to inhibit PERK show promising results in in vivo models of tauopathy.
Researchers from the University of Cologne have successfully inhibited a protein that hampers activation of brown fat in mice, leading to improved glucose metabolism. By feeding Bace1 inhibitors to these animals, scientists were able to activate their brown fat and alleviate metabolic problems.
Plant researchers have identified a key molecular mechanism regulating plant translational activity in response to ethylene, a major gaseous stress hormone. The study shows that transcription of certain genes is triggered, but protein production is restricted until ethylene levels drop, allowing plants to quickly respond and recover.
Researchers used artificial light to activate a natural receptor, ROS1, which is linked to several forms of cancer. They identified a new compound, AV-951, that inhibits this receptor using an 'all-optical' screening method.
Researchers identify that activation of normally protective immune responses causes nerve cell death by affecting mitochondria function. SARM1 protein is responsible, providing a potential target for therapy.
Researchers identify Zelda protein as key player in activating genes critical for embryonic development. The protein opens up enhancer regions, allowing other regulatory factors to bind and activate associated genes.
Researchers at UC Santa Cruz have determined the molecular mechanism involved in light-induced activation of Channelrhodopsin-2, a widely used protein in optogenetics. The discovery provides insights into creating tailor-made proteins optimized for use in optogenetics experiments.
A Duke University study shows that two biological clocks work together to help plants deal with fungal infections, while maintaining an already-packed daily schedule of activities. The researchers identified a gene called NPR1 that links the two clocks, allowing them to work together and optimize plant defenses.
Researchers have discovered a key driver of kidney growth in response to losing a single organ, highlighting the importance of protein synthesis and mTORC1 activation. By understanding this mechanism, they hope to develop new strategies for preserving kidney function in patients with a single functioning kidney.
Scientists at MD Anderson Cancer Center have discovered a key DNA pathway that allows certain brain cancers to resist standard treatments. The study found that activation of this pathway leads to enhanced survival of tumor cells and increased DNA repair, contributing to treatment resistance.
Listeria uses distinct tactics to breach the intestine and placenta, utilizing protein phosphoinositide-3 kinase (PI3-K) for invasion. The study uncovers key differences in Listeria's internalin proteins and their role in PI3-K activation.
Scientists create a chemical modified version of second messenger cAMP that selectively activates only Epac2, one of several proteins involved in insulin secretion. The analogue activates Epac2 more potently than cAMP itself, offering insights into the protein's function and potential as a pharmacological target.
A new study from Massachusetts General Hospital has found evidence of neuroinflammation in key brain regions of chronic pain patients. The study, published in the journal Brain, identifies a possible way to measure pain and may lead to new treatment strategies.
Researchers discover enzyme SPPL3 activates T cells without cutting proteins, providing new insight into immune system control. The findings could also shed more light on presenilin functions and related Alzheimer's disease.
Researchers found that two orphan receptor proteins, ERRbeta short and long forms, exert anti-cancer effects on glioblastoma cells when activated by DY131. The short form stops DNA replication, while the long form prevents cell division if DNA is already replicated.
A component of the plant Glycyrrhiza uralensis has been shown to inhibit the development of metabolic disorders by stopping the activation of NLRP3, a protein involved in disease process. Isoliquiritigenin attenuates high-fat diet-induced obesity, type 2 diabetes and hepatic steatosis in mice.
The IBS research team discovered that dsRNAs activate Protein Kinase R (PKR), regulating protein synthesis and mitotic processes. Disruption of PKR activation led to defects in cell division.
A newly created turmeric-based formulation releases curcumin's anti-inflammatory goodness throughout the body, halting acute inflammatory reactions and recruitment of immune cells. The study suggests that this delivery system could be used to prevent certain diseases and combat chronic inflammation.
Researchers at TSRI have discovered a process that can catch unstable proteins before they form toxic clusters, reducing their secretion and aggregation. The approach targets the Unfolded Protein Response pathway and involves activating transcription factor ATF6 to increase protein folding and trafficking.
Researchers developed a novel approach to target the activation of Ral proteins, which drive tumor growth in several human cancers. A compound called BQU57 proved most successful in slowing cancer cell growth and activation.
Researchers at TUM have mapped a new signaling mode for brassinosteroids, which regulate cell elongation and division. The study shows that brassinosteroids trigger a multi-level cascade of reactions controlling the activity of the CESTA transcription factor.
Researchers at Berkeley Lab have made a groundbreaking discovery in living cell signaling, finding that stochastic 'noise' is an important signaling factor. This breakthrough could lead to the development of treatments for various cancers and cellular disorders resistant to therapy.
A team of genome scientists has identified a 'hit-and-run' mechanism that allows regulatory proteins to initiate gene activation. This discovery has potential practical applications to improve nitrogen responses in crop plants, reducing fertilizer runoff and environmental health risks.
Researchers develop computer model to speed up search for compound that activates FFA4 protein, a key player in appetite regulation and glucose uptake. The model aims to identify molecules that bind to the protein, potentially leading to a new obesity treatment.
Researchers found that high-intensity exercise activates a single protein called CRTC2, which integrates signals from two pathways to direct muscle adaptation and growth. This results in increased muscle size and improved metabolic parameters.
Researchers identified a single-letter change in DNA that turns cold-sensitive TRP ion channels into heat-activated ones, offering potential for more specific pain relievers with less severe side effects. The study could lead to the development of analgesic compounds to treat chronic pain by targeting temperature-sensitive molecules.
A team of scientists has identified a key factor that contributes to neurodegeneration in ataxia-telangiectasia, a rare genetic disorder. The study found that DNA damage repair systems are essential for cellular integrity and stability, and that defects in these systems can lead to conditions like A-T.
A new study from the University of Southampton has found that chromosome errors in women's eggs occur due to a faulty gatekeeper mechanism. The researchers discovered that this 'gatekeeper' allows cells to divide with incorrect chromosomes, leading to conditions like Down Syndrome and early pregnancy loss.
Researchers found that SRT1720 supplementation significantly extended mouse lifespan by 8.8% while reducing body weight, improving muscle function, and lowering cholesterol levels. The study suggests a potentially promising strategy for improving human health and longevity.
A study published in Neural Regeneration Research found that endoplasmic reticulum stress plays a crucial role in the death of ganglion cells and impairment of retinal microvessels in diabetic retinopathy. Tauroursodeoxycholic acid treatment effectively inhibited this pathway, providing protection against diabetic retinopathy.
A team of scientists from Washington State University has discovered a unique mechanism used by the deadly Nipah virus to infiltrate human cells. Two proteins on the surface of the virus communicate like skilled burglars, allowing it to launch full-blown disease despite being only a single, miniscule virus.
A study published in JCI Journals found that circadian clock proteins regulate neuronal redox homeostasis and prevent neurodegeneration. BMAL1-deficient mice showed accumulated astrocytes, neuronal degeneration, and reduced blood flow, highlighting the importance of core clock proteins in maintaining healthy neurons.
Researchers at Rockefeller University Press develop a novel two-pronged approach to combat glioblastoma, a highly aggressive form of brain cancer. By combining interleukin-12 with a CTLA-4 blocking drug, the cocktail successfully eradicated tumors in mice, showing promise for future treatment.
Researchers reveal how neurons regulate PP1 protein through neurotransmitter NMDA, allowing PP1 to promote synaptic remodeling. A regulatory protein called inhibitor-2 also helps promote PP1 activity in neurons.
Researchers have discovered how αA-crystallin and αB-crystallin proteins prevent protein clumping in the ocular lens, paving the way for new treatment approaches. The molecular switch mechanism triggers protein activation when cells are stressed, such as under heat or stress.
Researchers at Salk Institute create technique to activate proteins in brain using light, allowing precise control over neuronal activity and enabling study of specific proteins. The method expands genetic code of mammals and opens possibilities for optically regulating protein modifications and interactions.
Researchers at Sanford-Burnham Medical Research Institute have uncovered a new metabolic pathway that regulates cell growth and responds to nutrients such as amino acids and glucose. The pathway involves the protein p62 and its interaction with TRAF6, which activates mTORC1 in response to nutrient signals.
Scientists from Max Planck Institute of Immunobiology and Epigenetics found that the protein MLE molds the RNA strand, allowing it to bind with other proteins. This dynamic interaction enables the entire X chromosome to be covered by the RNA-protein complex, essential for sex chromosome activation.
A massive genomics study by Yale researchers found hundreds of mutations causing congenital heart disease, often affecting histone-modifying genes. The study's findings suggest a wide range of common congenital diseases share common pathways.
Researchers identify mTORC1 protein as a key player in controlling blood pressure and link its abnormal activation to cardiovascular disease and obesity. Targeting this pathway may lead to better hypertension treatments for at-risk patients.
Researchers at Northwestern University identified a viral protein, VP1/2, that allows herpesvirus to interact with cellular motors and speed through the nervous system. This breakthrough enables the virus to move unobstructed from skin nerves to neuron nuclei, outcompeting most other viruses.
Researchers discovered that mycolactone, a lipid toxin produced by Mycobacterium ulcerans, disrupts the cellular skeleton through N-WASP activation. This dysregulation impairs skin integrity and cell adhesion, leading to Buruli ulcers. Blocking N-WASP activity with wiskostatin may provide a new treatment approach.
Researchers found that mycolactone, a lipid toxin from Mycobacterium ulcerans, causes cytoskeletal dysregulation by activating the protein N-WASP. This led to defects in cell adhesion and migration, impairing skin integrity. The study suggests using N-WASP inhibitors as potential treatments for Buruli ulcers.
Researchers at the University of Texas Southwestern Medical Center found that activating the unfolded protein response (UPR) triggers the expression of Xbp1s, a protein regulating genes needed for metabolic switch. This suggests Xbp1s could play a role in metabolic disease.
Researchers discovered Crag's crucial role in maintaining photoreceptor integrity by regulating the trafficking of rhodopsin. The protein activates Rab11, which enables the transport of vesicles loaded with freshly made rhodopsin, resetting the light-sensing mechanism.
Researchers found that eggs that don't fertilise due to defective PLCz protein can be treated with human PLCz, initiating fertilisation and improving pregnancy chances. The study strengthens potential use of PLCz in treating male infertility.
Researchers at Aarhus University have determined the atomic structures of MASP-2 and its substrate C4, shedding light on the complement system's activation process. The findings may lead to more intelligent ways of developing drugs that attenuate undesired activation of the complement system.
A UNC-led team describes a previously uncharacterized protein NLRC3 that inhibits NF-Kappa B activation and forms a novel TRAFasome complex. This discovery provides insight into mechanisms controlling inflammation and identifies potential therapeutic targets.