Patricia Inacio, PhD, science writer —

A natural metabolite called taurine may boost the effectiveness of existing multiple sclerosis (MS) therapies, researchers say. Taurine helps oligodendrocytes, which are cells responsible for myelin production, to fully mature and activate the remyelination process of damaged nerve cells. The findings were reported in the study, “…

A diet rich in vegetables, fruits and whole grains may decrease symptoms and lessen disease progression in patients with multiple sclerosis (MS), a study suggests. The report, “Diet quality is associated with disability and symptom severity in multiple sclerosis,” appeared in the journal Neurology. “People with MS…

 Novartis' Gilenya and interferon beta-1b-based therapies stop multiple sclerosis patients' cognitive decline, a Phase 4 clinical trial shows. Gilenya (fingolimod) also reduces patients' relapses and the number of their brain lesions — areas where a protein coating that protects nerve cells has deteriorated, researchers found.

Scientists announced positive and encouraging outcomes from two clinical studies — running as part of the larger Human Vaccines Project — aiming to unravel the mechanisms that underlie our immune system’s ability to fight disease. The results are expected to shed light on unknown aspects of the immune system that scientists at the Human Vaccines Project, a public-private partnership, hope to translate into new trials for diseases linked to the immune system, such as multiple sclerosis. Results from the trials — the Human Immunome Program and the Immunity to Hepatitis B Vaccine study — were recently presented at the World Vaccine and Immunotherapy Congress in San Diego, California. In the ongoing Human Immunome Program, researchers are trying to fill a major knowledge gap in the components and mechanisms of the immune system that allow it to recognize various threats, from viruses, parasites and bacteria to cancer cells. They are using blood samples from healthy people to analyze, at an unprecedented depth, the whole repertoire of genes that make up the surface receptors of immune B- and T-cells, the core cells of the immune system’s defence mechanisms. Results will likely advance how scientists diagnose and treat various diseases, and could prompt the development of new, improved vaccines. "We are studying the immune systems of healthy individuals to identify common elements, which could be important for facilitating new and improved vaccines," James E. Crowe Jr., MD, director of Vanderbilt University Medical Center's Vaccine Center, the leading scientific institution of the Human Immunome Program, said in a press release. Researchers will cross the sequencing information with participants' microbiome composition — the natural community of microbes that reside in an organism and are key for a healthy immune system — and other health and sociodemographic characteristics. "We also plan to expand these studies to complete the catalog across different demographics and geographies and compare healthy subjects with individuals with immune-mediated diseases such as multiple sclerosis, cancer and Alzheimer's, which could also reveal novel diagnostic markers," Crowe said. The second study, the Immunity to Hepatitis B Vaccine trial — currently recruiting participants — aims to understand why some people achieve protection against Hepatitis B after a single vaccine shot, while others require up to three immunizations to acquire full immunity. Understanding why the immune system responds differently in individuals can help researchers improve existing vaccines and potentially lead to one-shot vaccines that provide long-term immunity for all populations. Researchers in this study are analyzing genes belonging to the innate-immune system — a general immune system response, not one tailored to specific threats — and observing that activation of these genes in certain immune cells can predict who will be a responder after a single shot of the Hepatitis B vaccine. Preliminary results of the Immunity to Hepatitis B Vaccine study were delivered in two separate sessions at the congress. One was given by Manish Sadarangani, director of the Vaccine Evaluation Center of the University of British Columbia and BC Children's Hospital Research Institute, and the by and Richard Scheuermann, director of the J. Craig Venter Institute in La Jolla, California. "These preliminary data points toward strategies to understand why some people respond better to vaccines than others," Sadarangani said. "Using single cell analyses, we now have the opportunity to probe vaccine-induced responses more effectively, to not only learn what happens immediately after vaccination, but to monitor responses over time and utilize machine learning to eventually predict the human immune response to vaccines," added Scheuermann. Wayne C. Koff, president and chief executive officer of the Human Vaccines Project, emphasized that researchers are optimistic with the results obtained so far, as they "provide important insights into the scale and complexity of the human immune system and how vaccines confer protective immunity." "With our network of academic and corporate partners, we aim to build on these findings and decode the human immune system, giving the world the tools required to advance the development of future vaccines and therapies to defeat major global diseases," Koff concluded.  

Researchers at the MRC Centre for Regenerative Medicine, University of Edinburgh, have discovered a mechanism that accelerates reprogramming of cells into any other cell type. The finding may help boost drug discovery and cellular therapies for several diseases, including multiple sclerosis (MS). The study reporting the findings, “…

Immune cells that destroy myelin in multiple sclerosis (MS) access the brain and spinal cord via two different routes, a new mouse study shows. This suggests that therapies which target these entry routes may shield the brains of MS patients from further damage. The study, “Caveolin1 Is Required for…

A diet rich in vegetables and low in protein reduced inflammation in multiple sclerosis (MS) patients by modulating the gut microbiome and promoting bacteria that helps control a hyper-reactive immune system. The study reporting the findings, “Immunological and Clinical Effect of Diet Modulation of the Gut…

Celgene released the results of two Phase 3 trials showing that patients with relapsing multiple sclerosis (MS) who were treated with ozanimod had lower relapse rates and fewer MRI brain lesions compared to those given a current first-line therapy, Avonex (interferon β-1a). These results will be used to support a request…

Merck’s Mavenclad (cladribine tablets) is now a recommended treatment for British adults with highly active multiple sclerosis (MS), following the issuance of a final appraisal determination by the country’s National Institute for Health and Clinical Excellence (NICE). The therapy — given at a dosage of 10 mg — received the…

GeNeuro‘s humanized antibody GNbAC1 promotes the rejuvenation of the myelin coating that protects nerve cells in patients with relapsing-remitting multiple sclerosis, or RRMS, a Phase 2 clinical trial shows. The treatment is also safe, the study showed. Dr. Hans-Peter Hartung of the Heinrich-Heine-University Düsseldorf in Germany presented the results at the 7th…

The Japanese company MediciNova‘s anti-inflammatory agent ibudilast slows multiple sclerosis patients’ brain shrinkage and their loss of the protective myelin coating around nerve cells, a Phase 2 clinical trial shows. Robert J. Fox of Ohio’s Cleveland Clinic Neurological Institute presented the results at the 7th Joint ECTRIMS-ACTRIMS Meeting in Paris, Oct. 25-28.

Long-term exposure of at least three years of beta-interferon therapies such as Rebif or Avonex may increase the survival of multiple sclerosis (MS) patients, a population-based study suggests. The study reporting the findings, titled “Beta-interferon and mortality in multiple sclerosis: a population-based international study,” was presented Friday at the ongoing ECTRIMS-ACTRIMS Meeting…

After the first round of symptoms, multiple sclerosis can stay mild without causing major problems for decades, a 30-year British study indicates. Karen K. Chung of the University College London Institute of Neurology discussed the findings at the ECTRIMS-ACTRIMS meeting in Paris, which started Oct. 25 and runs until 28. His presentation was titled “Does…

Probiotics may improve the health of people with multiple sclerosis (MS) by reducing disability and improving inflammatory and metabolic parameters, an Iranian study shows. Live microorganisms linked to health benefits, known as probiotics, have long been known to help chronic disease patients. In a previous study of people with major depressive disorder, probiotics treatment for eight weeks improved patients’ depression and metabolic parameters. More recently, authors investigated the impact of probiotics on a group of MS patients, looking not only at mental health and metabolic indicators, but also disability scores. Researchers at Tehran's Shahid Beheshti Hospital recruited 60 MS patients, divided them in half, and assigned 30 to take a probiotic capsule and 30 a placebo once a day for 12 weeks. The probiotic contained the healthy bacteria Lactobacillus acidophilus, Lactobacillus casei, Bifidobacterium bifidum and Lactobacillus fermentum. Researchers measured patients’ health parameters and disability scores at baseline and after treatment. The results showed that probiotic intake after 12 weeks improved MS patients' disability scores (assessed by the expanded disability status scale, EDSS) when compared to placebo controls. Although this improvement was statistically significant, it was not clinically significant — which is defined as a change of 1.0 point or more at EDSS levels less than 5.5, or 0.5 point or more at EDSS levels greater than 5.5). Moreover, benefits were also detected in several mental health parameters – Beck Depression Inventory, general health questionnaire-28 (GHQ-28), depression anxiety and stress scale. Consuming probiotic capsules also significantly decreased insulin levels and high-density lipoprotein (HDL) cholesterol in circulation, researchers also found. It also lowered certain markers of inflammation and oxidative stress, such as serum high-sensitivity C-reactive protein (hs-CRP) and malondialdehyde (MDA).

Past infection with the Epstein-Barr virus (EBV) has been reported to increase the risk for multiple sclerosis (MS). Now, researchers have found a link between EBV and MS in three racial-ethnic groups, with African-Americans and Latinos showing a higher risk for MS than Caucasians.

A substance that the pancreas secretes can promote the regeneration of the protective nerve-cell coating that is damaged in multiple sclerosis, a mouse study shows. The substance is fibroblast growth factor 21, or FGF21. It promotes remyelination, the renewal of the myelin sheath protecting the central nervous system, according to the…

A multiple sclerosis study will collect information about patients' movement performance and symptoms from their smartphones, Novartis has reported. The study is aimed at evaluating in real time the daily challenges of people living with MS. The results may help researchers develop new ways to measure treatments' effectiveness, the company said. Novartis is partnering on what it has dubbed the elevateMS study with Sage Bionetworks. The non-profit research organization is developing new predictors of disease to accelerate health research. A cellphone application will allow MS patients to send information about their situation from anywhere. The app will use sensors to gather information on patients' movements. It will also assess functional performance tasks that participants engage in. Patients can also fill out questionnaires with the app. A division of Apple called the Apple ResearchKit platform developed the app. Those interested in participating in the study can download it here. The elevateMS app allows a smartphone user to register important features of their disease. It includes a symptom tracker tool that allows users to record their overall wellness. They can also get an overview of what's been happening to them on an activity dashboard. Patients, neurologists and disease advocates gave Apple's app team input that helped with the design. "As physicians, we always want to know how our patients with MS are doing on the treatments we prescribe," Dr. Stanley Cohan, medical director of the Providence Multiple Sclerosis Center in Portland, Oregon, said in a press release. "With the elevateMS app, study participants can frequently document their symptoms in a personal health story," said Cohan, one of the scientific advisors to the study. "In turn, this data may provide researchers with new ways to look at disease progression and treatment effectiveness." The elevateMS study is open to MS patients 18 years old or older in the United States who own a smartphone. Additional information about it is available at www.elevatems.org.

A new and potentially important mechanism in the development of autoimmune diseases like multiple sclerosis was discovered by scientists at the University of Freiburg, Germany. They identify a protein, called Caveolin-1, that is essential to immune cells called B-cells working as intended to protect a person from pathogens or — in its absence…

Health Canada has approved Ocrevus for the treatment of adults with relapsing-remitting multiple sclerosis (RRMS) with active disease, Roche Canada announced. The approval followed the positive results from the Phase 3 OPERA studies, which evaluated the safety and efficacy of Ocrevus in 825 patients with RRMS. The OPERA 1 and OPERA 2 trials showed that Ocrevus significantly reduced disease activity and disability progression of RRMS patients, with annual relapse rates falling by almost half. Moreover, Ocrevus outperformed Rebif, the standard of care in MS, in slowing worsening of disability and significantly reducing lesions seen on MRI scans over a two-year treatment period. "Ocrevus is a major addition to the treatment options available for MS. The RRMS Ocrevus clinical trial data show a significant reduction in relapses and disease progression, as well as a good safety profile," Daniel Selchen, a neurologist and head of the Division of Neurology at St. Michael's Hospital in Toronto, said in a press release. "For appropriate patients, Ocrevus will be of great value in reducing the burden of MS." The treatment's approval, however, did not extend to — or mention — people with primary progressive MS, in contrast to the U.S. Food and Drug Administration's action in March, which approved Ocrevus for both MS forms. Health Canada did not give address PPMS in its announcement. Estimates are that 100,000 Canadians are currently living with MS, and most have the relapsing form. A number welcomed Ocrevus' arrival for what it offers in their fight against this disease.

Atara Biotherapeutics recently published an update of the company’s quarterly financial results and operational highlights, including the advancement of its T-cell based immunotherapy strategies for multiple sclerosis (MS) and cancer. One of the investigational therapies featured in the report is ATA188, a potential treatment for MS.

A bacteria present in the gut, called Prevotella histicola, prevented multiple sclerosis from developing in a preclinical mouse model, found researchers at the Mayo Clinic in Rochester, Minnesota, along with colleagues at the University of Iowa. Current research suggests that alterations to the gut microbiome residing in human intestines may potentially trigger inflammatory diseases such as MS. In an attempt to identify which gut resident bacteria are capable of modulating immune responses, researchers studied cultured small pieces of intestine tissue extracted from biopsies of patients with celiac disease. The team then isolated three bacteria strains and found that one of species — P. histicola — had the capacity to suppress MS in a preclinical animal model of the disease. “This is an early discovery but an avenue that bears further study," Dr. Joseph Murray, a Mayo Clinic gastroenterologist and the study's lead author, said in a press release. "If we can use the microbes already in the human body to treat human disease beyond the gut itself, we may be onto a new era of medicine. We are talking about bugs as drugs." By investigating how P. histicola modulated immune responses to suppress MS, researchers found that bacteria decreased the expression of two pro-inflammatory cytokines – interferon-gamma and interleukin (IL)-17. Overall results show that P. histicola has immune modulatory activity and can suppress abnormal immune responses, which ultimately prevent autoimmunity. This supports the idea that maintaining a healthy microbial community within our intestines is a potential therapeutic strategy for MS. "Our work is a classic example of a bedside-to-bench and potentially back to bedside study. Recent MS microbiome studies have shown the lack of Prevotella genus in patients with the disease and an increase when patients were treated with disease-modifying drugs," said Ashutosh Mangalam, the study's first author and an assistant professor of pathology at University of Iowa's Carver College of Medicine. "And it's not just for MS, because this may have a similar modulating effect on other nervous system and autoimmune diseases."

Children with multiple sclerosis consume less iron, which may affect their immune and nervous systems, according to a study. Most MS cases occur between the ages of 20 and 40, but sometimes children under 18 develop it. Pediatric-onset MS, as it is called, is believed to account for 3 to 5 percent of cases that adults have now. Despite their low frequency, they are important because "the study of factors early in life which could affect their disease may provide important insight into the disease more generally," the researchers from the Network of Pediatric MS Centers wrote. One of the factors that could be important in the onset of MS is diet. But little has been known about how diet influences the risk and progression of the disease, particularly in pediatric MS. In a study funded by the National MS Society, researchers decided to investigate the association between diet and MS in children, according to a press release. The team recruited 312 MS patients 18 and younger from 16 children's hospitals in the United States, and 456 controls without MS. The participants, or their parents, answered a questionnaire dealing with the participants' medical history, their physical development, and whether they were exposed to potentially harmful environmental factors. The questionnaire also covered demographic information and race. Researchers used the Block Kids Food Screener questionnaire to obtain information about the participants' diets, including their intake of fiber, fat, carbohydrates, proteins, fruits, vegetables, dairy products, and iron. The analysis showed no meaningful link between the consumption of fiber, fat, carbohydrates, proteins, fruits, vegetables, and dairy products and children's development of MS. Children with the disease did have lower iron intake than the controls, however. Although in this exploratory study researchers didn’t look at whether there was a cause-and-effect relationship between iron and MS, the results suggested that children with the disease may be less likely to consume iron, a fact that warrants further investigation. Iron is a vital mineral for our body to function properly, and low iron intake may affect the immune and nervous systems. Future studies on the risk of children developing MS should "investigate the role of specific vitamins and minerals," the team said. They should also "investigate the influence of dietary factors on disease outcomes in already established" cases of MS.

Coming down with the flu can provoke relapses in multiple sclerosis patients by activating glial cells that surround and protect nerve cells. In a study in mice, scientists found that activated glial cells increase the levels of a chemical messenger in the brain that, in turn, triggers an immune reaction and, potentially, autoimmune attacks. The flu is caused by the human influenza virus and, despite being unpleasant, usually resolves itself within days. However, for people with MS and other neurological conditions, the flu can lead to disease relapse. Researchers at the University of Illinois investigated what happens in the brain of MS patients during upper-respiratory viral infections, such as the flu. "We know that when MS patients get upper respiratory infections, they're at risk for relapse, but how that happens is not completely understood," Andrew Steelman, an assistant professor at the university and the study's senior author, said in a press release. "A huge question is what causes relapse, and why immune cells all of a sudden want to go to the brain. Why don't they go to the toe?" The team used a mouse model characterized by autoimmune responses within the brain and spinal cord — the type of deregulated immune responses seen in MS patients. Researchers infected the animals with a version of human influenza virus adapted to mice, and looked at changes that occurred in the animal’s central nervous system. While the virus was never detected in the animals' brains, upon infection some of the mice developed MS-like symptoms. "If you look at a population of MS patients that have symptoms of upper respiratory disease, between 27 and 42 percent will relapse within the first week or two," Steelman said. "That's actually the same incidence and timeframe we saw in our infected mice, although we thought it would be much higher given that most of the immune cells in this mouse strain are capable of attacking the brain." The team then investigated how a peripheral influenza infection could contribute to disease onset. They infected a wild-type (normal) strain of mice with the flu virus and looked at alterations in the brain and spinal cord. Scientists found that infection increased the activation of glial cells in the mice's brains. Moreover, it induced infiltration of several immune cells — T-cells, monocytes and neutrophils — into the brain within eight hours of infection. Overall, these findings suggest that the chemokine CXCL5 plays a key role in mediating an autoimmune attack in MS, and might be explored for therapeutic potential.

Spasticity in multiple sclerosis patients can be eased through a combination of botulinum toxin type A (BoNT-A) injections and rehabilitation. However, caregiver support is required to keep patients on this treatment, according to results of a retrospective analysis. Spasticity, a muscle control disorder characterized by tight or stiff muscles, is a major MS symptom. The condition is significantly detrimental to patients’ quality of life, affecting their general mobility and balance. Several oral anti-spasticity drugs are available. However, “treatment of spasticity in MS is frequently challenging because of the complex clinical picture and the undesired effects associated with oral therapy, such as fatigue, dizziness, and hypotension,” the researchers wrote. Previous studies show that BoNT-A, a toxin that blocks nerve activity in muscles, is an effective therapy for the management of MS-related spasticity. The long-term effectiveness and persistence of BoNT-A use in patients with MS-related spasticity, however, remains poorly investigated. The research team in Italy proposed “to investigate the long-term persistence to treatment with BoNT-A for MS-related spasticity and the determinants of BoNT-A discontinuation in daily clinical setting.” In total, the researchers reviewed data from 185 patients, out of which 121 were considered in their final analysis. They observed that, at the end of the follow-up period, 44% of the patients in the analysis were still being treated with BoNT-A, but 56% had discontinued treatment. Overall, these results “confirm the beneficial effect of combining BoNT-A injections with rehabilitation and highlights the crucial role of caregivers for achieving better long-term outcomes in people with MS suffering from spasticity,” the team concluded.

Advancells says its stem cell-based therapy completely reversed multiple sclerosis (MS) in an Indian pilot trial with only one MS patient. The patient, Rahul Gupta, was diagnosed with MS seven years ago and has since suffered multiple relapses. His disease was progressing fast and he was quickly losing his ability…

Twenty-four people have now received the multiple sclerosis and psoriasis therapy KY1005 in a Phase 1 clinical trial, according to its developer, Kymab. The Cambridge, England, company creates human antibody drugs for autoimmune diseases. The trial will focus on KY1005 as a psoriasis therapy, although its mechanism of action should work…

A new study draws a reverse link between the number of MRI scans of multiple sclerosis patients who are on interferon-beta 1a and doctors declaring there is evidence of the patients’ disease worsening. When doctors looked at one scan, rather than multiple ones, they were more likely to say that…

People with multiple sclerosis have high levels of pro-inflammatory TH17 immune cells in their intestines that correlate with change in the micro-organism mix in their gut and the levels of their disease activity, a study reports. Researchers said the findings suggest that diet, probiotics and therapies that regulate TH17 cells could help treat MS. Probiotics are supplements containing beneficial bacteria. The study, “High frequency of intestinal TH17 cells correlates with microbiota alterations and disease activity in multiple sclerosis,” was published in the journal Science. Research has shown that TH17 cells, also known as T helper 17 cells, play a role in the development of MS. In fact, they were the first harmful immune T-cells to infiltrate the central nervous system, according to studies in animals Where TH17 cells become activated has been unclear, however. Studies in mice suggested it was mainly in the small intestine. Research has also indicated that their activation increases the potential for a person to develop an autoimmune brain disease like multiple sclerosis. An autoimmune disease occurs when the immune system, which defends the body against disease, decides that a person's healthy cells are foreign, and attacks those cells. Researchers decided to see if the findings in mouse models of MS applied to people with the disease. They discovered a link between higher levels of TH17 cells in MS patients' intestines and autoimmune brain problems. They also found a correlation between higher levels of TH17 cells and changes in patients' gut microbiome. The team then identified which bacteria were changing in the gut. Patients with increased levels of TH17 cells and higher disease activity had a higher ratio of Firmicutes to Bacteroidetes bacteria and more Streptococcus strains in their gut, particularly Streptococcus mitis and Streptococcus oralis. Previous studies have shown that these species promote TH17 cell differentiation in humans. Cell differentiation involves a cell transforming from one cell type to another — usually a more specialized type. This dramatically changes a cell's size, shape, metabolic — or fuel-burning — activity, and responsiveness to signals. Some studies have suggested a link between T-cell differentiation and brain autoimmune diseases. “On the basis of our findings, we speculate that, under certain conditions, or because of still unknown virulence factors, these Streptococcus strains can colonize the small intestine and favor TH17 cell differentiation in the human gut mucosa [linings],” researchers wrote. In addition to more Streptococcus bacteria, the team detected lower levels of Prevotella bacteria in MS patients with disease activity than in healthy controls or patients with no disease activity. This decrease may also promote TH17 cell differentiation because “Prevotella is capable of producing the anti-inflammatory metabolite propionate that limits intestinal TH17 cell expansion in mice," the researchers wrote. Overall, the team concluded that “our data demonstrate that brain autoimmunity is associated with specific microbiota modifications and excessive TH17 cell expansion in the human intestine.” The findings suggest that regulating TH17 cell expansion, along with changes in diet aimed at regulating intestinal linings, could be ways to help treat MS.

A new study on rats indicates that the antidepressant Luvox promotes the production of the neuron-protecting coating that is deficient in multiple sclerosis. It also significantly decreased the severity of the animals' disease, researchers said, adding that Luvox promoted the production of the protective coating by helping stem cells evolve into oligodendrocytes, or cells that generate what is known as the myelin sheath. Patients with MS often experience anxiety and depression, with recent studies suggesting their rate of depression is three times higher than those with other long-term medical conditions. In addition to drugs targeting the underlying mechanisms of MS, such as inflammation and myelin loss, doctors often recommend that patients take antidepressants. The most common treatments they prescribe for moderate or severe depression are a class of serotonin re-uptake inhibitors that include Luvox. Few studies have looked at antidepressants' effects on animal models of MS, however. That prompted researchers to investigate Luvox's impact on both laboratory and rat models of the disease. Researchers used embryonic neural stem cells in their study. Luvox prompted laboratory stem cells to evolve into other types of cells, including neurons, oligodendrocytes, and astrocytes, which have several roles, including supporting and repairing neurons. Prozac also promoted stem cell differentiation — but at levels 10 times higher than those of Luvox. A key finding was that that Luvox significantly decreased the severity of the disease in the rats. Another important finding was that Luvox significantly reduced demyelination and immune cell infiltration in the rats' spinal cords. It also decreased the rats' expression of pro-inflammatory proteins known as cytokines. Overall, this study “demonstrated that fluvoxamine, in addition to its confirmed role in mood disorder therapy, could serve as a candidate clinical treatment for attenuating [reducing] neuro-inflammation and stimulating oligodendrogenesis in neurological diseases, particularly MS patients.”

Cigarette smoking is certainly no good for you, but it may not necessarily make your primary progressive multiple sclerosis (PPMS) worse, a new study finds. The study, “Smoking does not influence disability accumulation in primary progressive multiple sclerosis,” appeared in the European Journal of Neurology. It contradicts what was…