A gene called Mertk has important roles in the repair of myelin, the fatty substance that surrounds and protects neurons and that is lost in multiple sclerosis (MS). The findings were published in Cell Press, in the study “Multiple sclerosis risk gene Mertk is required for…
myelin
Prolonging a cellular defense mechanism shown to restore myelin — the protective sheath around nerve cell fibers that is lost in multiple sclerosis (MS) — may be key to treating the neurodegenerative disease, a study in MS mouse models suggests. That defense mechanism, called integrated stress response (ISR), helps…
A Phase 1 clinical trial investigating ANK-700 as a means to restore immune tolerance to myelin in people multiple sclerosis (MS) has begun dosing participants. Currently recruiting at a single site in Tennessee, the trial (NCT04602390) is expected to enroll up to 40 patients with relapsing-remitting…
Mavenclad (cladribine) reduces the number and volume of lesions in patients at risk of multiple sclerosis (MS) after a first clinical demyelinating event, a study based on Phase 3 trial data found. A demyelinating event occurs when myelin — the protective coating around nerve fibers — experiences damage; this…
A decline in the activity of the GPR17 gene is responsible for age-related brain deterioration caused by the loss of myelin, a fatty substance that surrounds nerve cells like a sheath, a mouse study discovered. Researchers identified a small molecule that rejuvenated…
Lipid (fat) molecules can function as chemical couriers, taking messages from tissue to tissue, organ to organ as part of the body’s immune defense guidance system. But in certain diseases such as multiple sclerosis (MS), the courier service may go awry. One such lipid molecule, called sphingosine 1-phosphate (S1P),…
Editor’s note: The Multiple Sclerosis News Today news team is providing in-depth and unparalleled coverage of the virtual ACTRIMS Forum 2021, Feb. 25-27. Go here to see all the latest stories from the conference. Factors in the cerebrospinal fluid (CSF) surrounding the brain and spinal cord change with age and can affect…
Sustained, excessive levels of interleukin 17A (IL-17A) — a pro-inflammatory molecule linked to multiple sclerosis (MS) and other autoimmune diseases — reduce the number and activity of the brain’s immune cells in the dentate gyrus, according to a study in mice. The dentate gyrus is part of the hippocampus, a…
Pipeline Therapeutics announced that it has raised $80 million in investor financing to develop neuroregenerative therapies for neurological disorders, including those like multiple sclerosis (MS) that are marked by the loss of myelin. The money will support the research and development of several candidate therapies, with three aimed at promoting and…
FDA Approves Plegridy as Intramuscular Injection for Relapsing MS A common patient complaint about Plegridy has been that its subcutaneous injection procedure results in injection site reactions. This new formulation is delivered into the muscle, rather than under the skin. The needle is longer, but Biogen pharmaceuticals thinks the…
Teams of scientists at the University of Toronto are sharing a nearly CA$21 million (about $16.36 million) award into research that might lead to self-repair treatments for multiple sclerosis (MS) and other neurological disorders, the university announced in a press release. Eleven teams at the university and its…
Multiple sclerosis (MS)-associated inflammation in the cerebral cortex — the outermost layer of the brain that is involved in cognitive function — prompts the destruction of neural connections by specific immune cells, according to a study in a mouse model of MS. These immune cells targeted dendritic spines (nerve…
Clene Awaits US Patent Covering Gold Nanocrystals’ Use in Treating MS This is a different approach to MS treatment. It uses very tiny crystals to produce a chemical reaction. It is hoped that this reaction will protect neurons and help to generate myelin. So far, there have only been…
A new primate model uncovered by researchers can help scientists understand the immune and inflammatory processes underlying the development of multiple sclerosis (MS) in humans, a study reports. It was already known that Japanese macaques — also called snow monkeys — can spontaneously develop encephalomyelitis (JME), a disorder that…
A thyroid hormone-mimicking compound not only prevented nerve cell damage but promoted the cells’ survival in a mouse model of multiple sclerosis (MS). This discovery advances previous research showing that the compound, called sobetirome, can induce the repair of myelin, the protective sheath around nerves. The data suggest…
Imatinib, a cancer treatment, stopped an injury response mechanism of the central nervous system (CNS) from activating, damage to which is a hallmark of multiple sclerosis (MS), an early study reported. Treatment with imatinib lessened immune cell infiltration and eased disease progression in mouse models of MS. Study researchers…
BioNTech’s experimental non-inflammatory vaccine — designed to dampen the abnormal immune responses seen in multiple sclerosis (MS) against myelin — delayed the onset and lessened the severity of symptoms in a mouse model of MS, a study reports. Importantly, treated mice showed no signs of overall immune suppression,…
To fully understand autoimmune diseases like multiple sclerosis (MS), it is necessary to study not just the immune system, but also the tissue that the immune system is attacking, a study suggests. “We must move away from the present ‘immune-centric-only’ view of autoimmune diseases,” Decio Eizirik, MD, PhD, study…
Levels of myelin sheath components called ceramides are altered in the blood of people with multiple sclerosis (MS) and may be linked with retinal degeneration and physical disability, a study has found. Specific ceramides were altered only in those with progressive…
New research in mice suggests that poor recycling of cholesterol in the brain impairs the repair of myelin, the protective coat surrounding nerve cells that is lost in multiple sclerosis (MS). Pharmacological stimulation of cholesterol synthesis by brain immune cells — called microglia — boosted the regeneration of myelin,…
The levels of a protein called Neuregulin-1 beta 1 (Nrg-1beta1) decline with the onset and progression of multiple sclerosis (MS), a new study suggests. The findings support the potential of Nrg-1beta1 as a predictor of MS risk and progression and suggest that restoring its levels may help halt disease…
The pro-inflammatory environment characteristic of multiple sclerosis (MS) reduces the levels of PPAR-gamma — a receptor protein whose activation dampens inflammation — and impairs myelin processing in immune cells that clear myelin debris, a study suggests. These findings may help to better understand how PPAR-gamma regulates the function of these…
Scientists have demonstrated that stem cells derived from the skin cells of people with multiple sclerosis (MS) can grow into normal myelin-producing nerve cells, called oligodendrocytes, in a mouse model of MS. These patient-derived cells migrated throughout the brain of myelin-deficient mice, producing myelin — the fatty…
Scientists have created myelin-producing cells, called oligodendrocytes, from pluripotent stem cells derived from patients with multiple sclerosis (MS) and amyotrophic lateral sclerosis (ALS) in just three weeks. They also demonstrated these lab-made oligodendrocytes were able to produce myelin — the fatty substance that normally wraps around neurons’…
Start2Cure Foundation is funding a research project that will investigate the potential of a gene therapy approach to treat multiple sclerosis (MS). MS is an autoimmune disease characterized by the damage and loss of myelin — the protective layer around nerve fibers, or axons, that is crucial to the…
Extracellular vesicles (EVs), tiny sacs released from myelin-producing cells called oligodendrocytes, may help dampen the immune system’s attack against myelin, whose loss is the hallmark of multiple sclerosis (MS), a new mouse study shows. The findings suggest that oligodendrocytes-released EVs could work as an universal immunotherapy for MS…
Using a two-pronged approach, researchers were able to restore myelin on regenerated nerve fibers in a mouse model of optic nerve injury, which has implications for multiple sclerosis (MS) and other diseases associated with myelin loss, a study reported. The study, “…
MD1003 Fails to Prevent Disability Progression in Progressive MS Patients, Trial Shows This is discouraging news for people taking high-dose biotin, many who have been buying it over the counter. Not only do these researchers report that taking 100 mg of biotin (MD1003) three times a day failed to…
There may be a better way of repairing the insulation surrounding damaged neurons that could lead to new treatments for multiple sclerosis (MS), a study suggests. The data showed that blocking the protein sphingomyelin hydrolase neutral sphingomyelinase 2, or nSMase2, could improve the quality of the myelin surrounding…
Suppressing pyruvate kinase M2 (PKM2) — an enzyme involved in cellular metabolism — in T-helper (Th) immune cells lessened myelin loss and disease severity in a mouse model of multiple sclerosis (MS). Myelin, the protective sheath around nerve fibers that helps speed transmission of signals between nerve cells, is damaged and lost…