biomarkers

Gilenya (fingolimod) influences the release and function of small membrane particles, called extracellular vesicles, that are involved in the development of multiple sclerosis — and these vesicles may serve a biomarker of treatment effectiveness in people with relapsing MS, researchers report. Extracellular vesicles (EVs) may also work…

Higher-than-usual levels of specific antibodies in the blood of patients with clinically isolated syndrome (CIS) may predict a faster progression to multiple sclerosis (MS), an Australian study reports. The specific antibody is known as IgG3, an immunoglobulin known to promote inflammation. The study, “Higher Serum Immunoglobulin G3 Levels May Predict…

Genentech’s Ocrevus (ocrelizumab) reduces levels of cerebrospinal fluid biomarkers that denote nerve cell damage in multiple sclerosis patients, a Phase 3 clinical trial shows. Researchers will present the results at the American Academy of Neurology’s annual meeting in Los Angeles, April 21-27. The presentation will be titled “Interim Analysis of the…

Inhibition of the neuroactive opioid growth factor (OGF) alters the blood levels of important pro- and anti-inflammatory proteins in mice with multiple sclerosis (MS)-like disease. The recognition of this regulatory response may represent a new way to monitor disease progression and treatment response in MS. These findings were reported in a study published in the journal Experimental Biology and Medicine, titled “Modulation of the OGF–OGFr pathway alters cytokine profiles in experimental autoimmune encephalomyelitis and multiple sclerosis.” The study was led by researchers at Penn State University. Understanding the underlying mechanisms involved in MS and finding ways to tackle them is crucial for improving early diagnosis, monitoring disease progression, and patient care. For many years, researchers at Penn State have been focused on understanding the benefits of low-dose naltrexone and its relation with OGF in health and disease, including MS. Naltrexone is marketed with the brand name ReVia, among others. This drug is used routinely off-label to treat MS and other autoimmune diseases, as it has demonstrated to it can reduce fatigue, lessen pain, and confer a general feeling of well-being to patients. Its mode of action is not fully understood, but it is known to block the interaction of the neuroactive OGF with its receptor OGFr. In addition, low-dose naltrexone and OGF were shown to prevent the proliferation of active immune cells in mice with MS-like disease. To further evaluate the role of OGF and low-dose naltrexone in MS, researchers treated mice with naltrexone and analyzed its impact on blood levels of pro- and anti-inflammatory signaling proteins (cytokines). Results showed that after 10 days, MS mice had increased levels in seven out of 10 tested cytokines. Treatment with OGF or low-dose naltrexone was found to specifically increase the levels of the pro-inflammatory IL-6 cytokine, and significantly reduce the levels of anti-inflammatory IL-10 protein. Two other pro-inflammatory proteins, TNF-α and IFN-γ, also were found to be increased in MS mice compared to healthy animals. While TNF-α levels were unaltered upon OGF or low-dose naltrexone treatment, IFN-γ was reduced at 10 days, but still present at higher-than-normal levels after 20 days of therapy. To validate its findings, the team analyzed the levels of the identified signaling proteins in blood samples collected from 14 MS patients and eight non-MS volunteers. Six MS patients were undergoing treatment with Copaxone (glatiramer acetate), and four of them had relapsing-remitting MS (RRMS). Four other RRMS patients and one primary progressive MS (PPMS) patient were receiving Copaxone plus low-dose naltrexone; three RRMS patients were receiving low-dose naltrexone alone. The analysis revealed that IL-10 serum values were comparable between non-MS controls and all MS patients on low-dose naltrexone alone, or Copaxone alone. Patients treated with both Copaxone and naltrexone presented a broad range of IL-10 serum values “that were significantly different from MS subjects receiving LDN [low-dose naltrexone] only,” the researchers wrote. In contrast, IL-6 cytokine was found to be significantly elevated in MS patients treated only with Copaxone compared to patients receiving low-dose naltrexone alone or together with Copaxone. “These data suggest that IL-6, a pro-inflammatory marker is very responsive to OGF and LDN therapy, and thus may be involved in other mechanistic pathways associated with the OGF-OGFr axis,” the researchers wrote. "Identification of inflammatory cytokines that have expression profiles mediated by OGF or LDN [low-dose naltrexone] therapy increase our panel of potential biomarkers for MS,” Patricia McLaughlin, PhD, said in a press release. McLaughlin is professor of neural and behavioral sciences at Penn State, and senior author of the study. “We hope that continued research will identify more specific cytokines and allow us to assemble a reliable panel of minimally invasive biomarkers related to the etiology and progression of MS," she added. Additional long-term human and mouse studies are needed to further evaluate if IL-6 and IL-10 are “appropriate markers to monitor progression of MS,” the researchers emphasized. Still, the team believes this study demonstrates that at least IL-6, IL-10, TNF-α, and IFN-γ, together with OGF, can be useful biomarkers to monitor MS. "McLaughlin and colleagues have researched OGF signaling for several decades, and this seminal discovery of dysregulation in OGF expression in MS patients, and animal models, is very exciting and could lead to prognostic biomarkers for this autoimmune disorder," concluded Steven R. Goodman, PhD, editor-in-chief of the journal in which the study was published.

In the future, a blood test may make diagnosing multiple sclerosis (MS) much easier, thanks to newly identified biomarker patterns that distinguish between MS patients and healthy people. The test could also correctly detect primary progressive MS (PPMS) in patients who also had relapsing-remitting disease (RRMS). Australian researchers suggest that…

Personalized medicine is the future of multiple sclerosis treatment, and research now taking place to collect and analyze data and pinpoint biomarkers will help make possible approaches that — one day — will put MS into “complete remission” patient by patient, said Richard Rudick, vice president of Development Sciences at…

A new study reports that vitamin D supplements do not prevent bone loss in multiple sclerosis patients who are not vitamin-D-deficient. Previous research has suggested that low levels of vitamin D increase the risk of a person developing MS. In addition, Vitamin D prevents loss of bone density. That loss can lead to fractures and osteoporosis, a condition that many MS patients experience as their disease progresses. Researchers decided to investigate the effect of weekly doses of vitamin D3 on patients with relapsing-remitting multiple sclerosis, versus patients receiving a placebo. All 68 participants in the Phase 4 clinical trial also received 500 mg a day of calcium, a compound that is also important for bone health. The team measured the effectiveness of the supplemental vitamin D by analyzing biomarkers of bone health in blood. These included levels of the proteins PINP, or procollagen type I N propeptide, and CTX1, or C-terminal cross-linking telopeptide. At the start of the study, levels of PINP and CTX1 were not significantly different between the two groups. And that continued to be true at week 48 and week 96 of the study. The bottom line was that vitamin D supplementation did not change bone health in patients with MS after 96 weeks. “Our results do not support that high dose weekly vitamin D supplementation is beneficial for bone health in ambulatory persons with MS, and suggest that weekly vitamin D supplementation alone is not sufficient to prevent bone loss in persons with MS who are not vitamin D deficient,” the researchers concluded. The results were different from previous studies supporting the beneficial effects of vitamin D supplementation in MS patients. The researchers said they believed the discrepancy was due to differences in the studies' patient characteristics, sample size, and duration of follow-up.

Already an approved treatment for relapsing and primary progressive multiple sclerosis (MS), Ocrevus (ocrelizumab) is still undergoing scrutiny in several clinical trials. Most focus on the drug’s effects in specific patient groups, but one study aims to advance understanding of how Ocrevus works to harness disease. To do so, the open-label Phase 3…

MicroRNAs in the blood could serve as biomarkers to monitor the progression of multiple sclerosis (MS), as well as help identify which mechanisms are at play in each patient, such as inflammation and tissue damage, according to new research. The findings were reported in the study, “Association Between Serum…

The International Progressive Multiple Sclerosis (MS) Alliance, a worldwide group of MS organizations that support research efforts, has awarded three, four-year grants — called Collaborative Network Awards, and worth $6 million each — to speed work into potential treatments for progressive MS. Found in about 15 percent of all initially diagnosed…

A newly discovered potential biomarker of multiple sclerosis (MS) may help to distinguish between people who will go on to have less severe disease and those in whom the disease will progress, researchers at Linköping University in Sweden report. The biomarker’s discovery came through an investigation into the immune system of MS…

MicroRNAs present in the blood show promise as potential biomarkers of multiple sclerosis (MS), a new study suggests. The study, titled “Comprehensive Evaluation Of Serum MicroRNAs As Biomarkers In Multiple Sclerosis,” was published by Keren Regev, MD, and colleagues in the journal Neurology. Human DNA contains…

Researchers working with magnetic resonance imaging (MRI) are often faced with a problem: an average MRI brain scan produces a considerable amount of images (around 600 megabytes), but half carry distortions that make them unreadable. These “phase images,” as they are known, are usually discarded and their insights lost. Now, the work of researchers…

Blood biomarkers in individual multiple sclerosis patients may help clinicians determine which treatments would be of most benefit to that person, according to researchers at Oklahoma Medical Research Foundation (OMRF). The study, published in the journal Neurology, Neuroimmunology & Neuroinflammation, is titled “Cytokine profiles show heterogeneity of interferon-β response in multiple sclerosis patients.”…

Scientists from the Neuroimmunological Diseases Unit at the National Institutes of Health (NIH) will present results of a study investigating several biomarkers that might lead to a more sensitive and accurate diagnostic test of central nervous system (CNS) inflammation, a key aspect of progressive multiple sclerosis (MS). The data is being reported today, Feb.18, at the…

A new study underscores the variability of immune responses in different people with multiple sclerosis (MS) and suggests this heterogenity affects responses to the commonly prescribed MS medication interferon-β, but blood biomarkers may exist that can help to determine those most likely to benefit from such treatment. The study, “Cytokine profiles…

In a special feature published in the journal American Health & Drug Benefits, authors Stanton R. Mehr, President of SM Health Communications, and Marj P. Zimmerman, President of RxDirections, discuss the many unmet medical needs multiple sclerosis (MS) patients still face in dealing with the…

In a new study entitled “Untargeted plasma metabolomics identifies endogenous metabolite with drug-like properties in chronic animal model of multiple sclerosis,” a team of researchers performed a comparative analysis of metabolites between control mice and a mouse model with experimental autoimmune encephalitis (EAE, the most commonly used…

New developments in the diagnosis and treatment of multiple sclerosis (MS) are being discussed at this year’s 31st annual Congress of the European Committee for Treatment and Research in Multiple Sclerosis (ECTRIMS). The symposium, being held in Barcelona, Spain, will foster discussions about development of individualized therapies for MS patients through a more targeted and efficient…

In a recent study published in the journal Nature Communications, LMU clinicians have clarified the lifespan of antibody-producing cells and have also identified a novel biomarker that could be used to monitor autoimmune conditions such as multiple sclerosis and lupus erythematous. The humoral immune response is mediated by cells…

Amarantus BioScience has released preliminary data from a blood test for multiple sclerosis (MS) called the MSPrecise diagnostic. The company believes that the test could lead to more accurate diagnoses of MS early in the disease’s progression. MSPrecise is a DNA sequencing test designed to identify specific DNA mutations that are associated with the…