immune system

A new clinical trial is comparing the best available therapies to an experimental stem cell therapy to treat severe forms of relapsing multiple sclerosis (MS). At the moment, more than a dozen therapies have been approved by the U.S. Food and Drug Administration for the treatment of relapsing forms…

Probiotics show potential to prevent and delay the development of multiple sclerosis (MS) by changing immune and inflammatory responses, according to a review study. Data further support the link between the gut’s microbial community (microbiota) and the central nervous system (brain and spinal cord), and neurodegenerative diseases. However, large-scale clinical…

Throughout 2019, Multiple Sclerosis News Today brought you daily coverage of the latest scientific findings, treatment developments, and clinical trials related to multiple sclerosis (MS). We look forward to reporting more news to patients, family members, and caregivers dealing with MS during 2020. Here are the top 10 most-read articles of…

A single dose of CD45-ADC, an investigational targeted therapy being developed to treat different types of autoimmune diseases, is enough to reset the normal function of the body’s immune system in a mouse model of multiple sclerosis (MS), and to delay onset of the disease. Those findings…

Long-term treatment with interferon beta (IFN-beta) corrects the defective immune balance characteristic of people with relapsing-remitting multiple sclerosis (RRMS), a study has found. The study also identified more than 200 genes with significantly different activity between complete and partial responders to IFN-beta treatment, which could be used to identify which…

People with multiple sclerosis (MS) tend to have low levels in their blood serum of certain antibodies that can protect against infection, regardless of whether they are using a disease-targeted therapy or not, a study reports. These levels were not so low as to risk infection on their own,…

Scientists may have found a way to manipulate T-helper 17 (Th17) cells so as to lower their ability to trigger inflammation, delaying the onset of multiple sclerosis (MS) in a mouse model and slowing its progression without affecting the entire immune system. Their findings may lead to new treatments with fewer…

An ongoing experiment at the International Space Station may help identify triggers for multiple sclerosis (MS) and Parkinson’s disease by studying how nerve cells and immune cells interact when exposed to microgravity. Using patient-derived cells, researchers will study the way nerve cells grow, survive, and change their gene…

Targeting a protein found in immune T-cells called Oct1 may help prevent the misguided immune response seen in autoimmune diseases like multiple sclerosis (MS), a study shows. Most importantly, a lack of Oct1 does not influence the immune system’s ability to fight viral infections. The study “T cell-selective…

Patients with multiple sclerosis (MS) have more genetic variants of genes that regulate the pro-inflammatory signals of protein complexes called inflammasomes, according to new research. The findings support the importance of inflammasomes, which play an important role in the innate immune system, in the development of MS. The study,…

Immune system activation induced by filgrastim may be beneficial for patients with progressive multifocal leukoencephalopathy associated with the use of Tysabri (natalizumab), without worsening multiple sclerosis (MS) progression, a study says. The study with that finding, “Treatment of natalizumab‐associated PML with filgrastim,” was published in…

A mismatch — between the ancestral immune function changes induced by the placenta and fewer modern-day pregnancies — may help explain the greater risk for multiple sclerosis (MS) and other autoimmune diseases in women in industrialized societies, according to a new study. The shift toward a sedentary lifestyle may…

An active form of vitamin D can modulate the activity of immune cells and prevent autoimmune reactions known to be involved in several human diseases such as multiple sclerosis (MS). A study with that finding, led by researchers from The University of Edinburgh in Scotland, reveals a new layer…

In mapping the immune system of the brain in mice and humans, scientists in Germany found that microglia — a type of nerve cell located in the central nervous system and responsible for supporting and protecting neurons — share the same core design, but behave differently depending on the specific function each…

Early-life use of antibiotics disrupts gut microbiota in a rat model of multiple sclerosis (MS) and provokes nervous system autoimmunity, ultimately aggravating disease severity, new research shows. Results also indicate early-life antibiotic use may have unfavorable consequences on regulation of the immune system. The research article, “…

Today I came back to myself. For two months, I have been encapsulated in a hazy bubble. I could not kick this persistent bronchial condition and began to get frustrated. After three courses of ineffectual antibiotics and inhalers, I had a work-up for pneumonia. Thirty minutes later, I received…

A genetic variant associated with an increased risk of multiple sclerosis (MS) due to its impact on certain immune system cells can also affect brain cells called astrocytes, a study shows. Reported in the study, “Enhanced astrocyte responses are driven by a genetic risk allele associated with multiple…

The cells that produce myelin in the brain and spinal cord, called oligodendrocytes, may play an active role in the onset or progression of multiple sclerosis (MS), according to a study combining data from MS mouse models and the human brain. This discovery supports the…

Environmental changes, such as high temperatures and alterations in salt types and concentrations, trigger structural changes to myelin that may increase the risk of multiple sclerosis (MS), according to a new study. The research, “Pathological transitions in myelin membranes driven by environmental and multiple sclerosis conditions,” was…

Jonathan Kipnis, the researcher who discovered that lymphatic vessels are important mediators of the underlying molecular mechanism of multiple sclerosis (MS), has received the prestigious Director’s Pioneer Award from the National Institutes of Health (NIH). This prize recognizes researchers who have made important contributions to the development of new…

Gender differences are evident in immune system cells of the brain called microglia, a study in male and female mice reports, suggesting these cells’ sex-specific features may be important to treating people with  multiple sclerosis (MS) and other neurological diseases. The study “…

In mid-July, the woman who writes the Multiple ExperienceS blog had a little fall. As Jamie explains, her rollator went forward, but her feet didn’t. The fall left a small cut on her knee. Over the next few days, Jamie’s knee swelled, and a trip to her doctor,…

I’m now three months past my second round of Lemtrada treatments, so it’s time for an update. I began Lemtrada (alemtuzumab) in December 2016, hoping it will be the last disease-modifying therapy that I’ll ever need to use. I’ve had peaks and valleys since this treatment began, thus…

A 12-week clinical study is recruiting people with relapsing-remitting multiple sclerosis (RRMS) to evaluate if intermittent fasting can improve their immune response, metabolism, and gut microbiome — the bacterial community that inhabits the gastrointestinal tract. Its findings may also hint at whether such a diet might ease MS symptoms or alter discourse course and, if used in conjunction with other treatments, boost their efficacy. Conducted by researchers at Washington University in St. Louis, Missouri, the trial is supported by their findings in an earlier mouse study.  Results showed that fasting worked to ease MS-like symptoms in a mouse model of the disease, the research team reported. Specifically, EAE mice fed every other day were less prone to symptoms that included difficulty in walking, limb weakness, and paralysis than mice allowed to eat freely.  A fasting diet also enriched bacterial diversity in the mice guts, and shifted immune cell populations there toward a lower inflammatory response. When gut bacteria were transferred from fasting mice to nonfasting mice, the later also were seen to be better protected against MS-like movement problems, supporting the influence of the gut microbiome on MS symptoms. Several diets have been proposed to help ease disease progression in MS patients, but solid scientific evidence is lacking to support any one diet over another, leaving the issue much to an individual’s choice. “The fact is that diet may indeed help with MS symptoms, but the studies haven’t been done,” Laura Piccio, MD, an associate professor of neurology at WUSTL and the study's lead author, said in a WUSTL news release written by Tamara Bhandari. Taking place at the Missouri university, the trial is expected to enroll 60 RRMS patients. Half will be randomly assigned to eat a standard Western-style diet seven days a week, and the other half to Western-style diet five days a week, with two days set aside for fasting (consuming a maximum of 500 calories each day). On fasting days, patients can only drink water or calorie-free beverages and eat fresh, steamed or roasted non-starchy vegetables All will undergo a neurological assessment, and provide blood and stool samples in the study's beginning, at mid-point or week six, and at its end (week 12). Those using MS medications will continue on their prescribed treatment regimens throughout the study. More information, including enrollment information, is available here. Piccio noted that a pilot study on diet in 16 MS patients showed that limiting calories every other day for two weeks led to immune and gut microbiome changes that resembled those observed in the mice study she helped to lead. Its researchers concluded that intermittent fasting had the potential to positively manipulate the immune response in MS patients by changing their gut microbiome. The gut microbiome plays a central role in digestion, and in producing vitamins and amino acids (the building blocks of proteins). But a growing body of evidence indicates that it also determines how our immune systems develops and matures. Indeed, an increasing number of studies link irregularities in the gut microbiome with MS. “There are several possible ways fasting can affect inflammation and the immune response,” Piccio said. “One is by changing hormone levels. We found that levels of the anti-inflammatory hormone corticosterone were nearly twice as high in the fasting mice. But it also could act through the gut microbiome.” The new trial will allow the team to analyze more deeply the effects of a fasting diet — and perhaps gather evidence for a larger study investigating if skipping meals can ease MS symptoms. Its goal is to find out "whether people on limited fasts undergo changes to their metabolism, immune response and microbiome similar to what we see in the mouse,” Piccio said. “I don’t think any physician working with this disease thinks you can cure MS with diet alone,” she added, “but we may be able to use it as an add-on to current treatments to help people feel better.”

New research shows that overreactive and tissue-damaging T-cells can transition into regulatory T-cells that help to control the immune system’s response. These findings open the door to further understanding of the mechanism underlying this transition, knowledge that can help scientists in designing more effective, targeted immunotherapies for diseases like multiple…

Lately, much of my work has been focused on the relationship between the gut and MS. As I experience ongoing gut issues, I need to learn how to advocate for myself by learning as much as I can about gut bacteria and finding the right…

A new fluorescent imaging strategy allows researchers to track T-cells and further understand their dynamics in vivo, giving them insight into what happens when these immune cells attack myelin in a mouse model of multiple sclerosis (MS). The new technology was reported in the study, “A timer for…

Exposure to fracking chemicals during pregnancy may aggravate multiple sclerosis (MS) severity and induce an earlier start of symptoms, a new study in mice suggests. The study, “Developmental Exposure to a Mixture of 23 Chemicals Associated With Unconventional Oil and Gas Operations Alters the Immune System…

Symbiotix Biotherapies has gained access to Harvard University material that could help it develop treatments for autoimmune and inflammatory diseases like multiple sclerosis and inflammatory bowel diseases. It obtained access to the intellectual property, much of which deals with gut bacteria, under a licensing agreement with Harvard. Intellectual property typically includes…

Researchers further explored how our internal biological clock — known as circadian rhythm — influences immune system responses. Disruptions to that rhythm are associated with immune diseases like multiple sclerosis (MS), although in ways not fully understood and, the study suggests, may affect response to treatment. A natural 24-hour cycle that exists…