Marisa Wexler, MS, senior science writer —

Marisa holds a Master of Science in cellular and molecular pathology from the University of Pittsburgh, where she studied novel genetic drivers of ovarian cancer. Her areas of expertise include cancer biology, immunology, and genetics, and she has worked as a science writing and communications intern for the Genetics Society of America.

Articles by Marisa Wexler

Atara, Fujifilm Enter Deal to Produce Cell Therapies

Atara Biotherapeutics has reached an agreement with Fujifilm Diosynth Biotechnologies for the production of its cell therapy pipeline, including ATA188, an experimental therapy being investigated for the treatment of progressive multiple sclerosis (MS). Under the agreement, Fujifilm will acquire Atara’s T-Cell Operations and Manufacturing (ATOM) facility in Thousand…

How Vitamin D Modulates Immune System Activity Detailed in Study

Vitamin D can influence the immune system’s tolerance to certain proteins by changing how DNA is packaged in specific immune cells called dendritic cells, according to a new study. Its findings could have implications for treating diseases like multiple sclerosis (MS) that are characterized by the immune system attacking…

Study Explains How Epstein-Barr Virus Infection Could Cause MS

Similarities between an Epstein-Barr virus (EBV) protein and a brain protein called GlialCAM may explain why EBV infection increases the risk of multiple sclerosis (MS), results from a new study show. Due to the structural resemblance of the two proteins, B-cells — a type of immune cell that is critical…

Imaging Brain Metabolites May Help Diagnose, Monitor MS

A new imaging technique called magnetic resonance spectroscopic imaging, or MRSI, could be useful for diagnosing and monitoring multiple sclerosis (MS), according to a small study. “If confirmed in longitudinal clinical studies, this new neuroimaging technique could become a standard imaging tool for initial diagnosis, for disease progression and…

Study Probes Why Some Don’t Experience Placebo Effect

Differences in the physical architecture of the brain may explain why some people with multiple sclerosis (MS), but not others, experience a placebo effect, according to a new study. The results suggest that MS itself may make some individuals unable to experience the benefits of a placebo. “Our findings…

Acthar Gel May Help RRMS Patients Who Fail Corticosteroids

Acthar Gel (repository corticotropin injection) may be useful for managing disease relapses in people with relapsing-remitting multiple sclerosis (RRMS) who fail to respond to treatment with corticosteroids, according to results from a small clinical trial. The study, “Results from a multicenter, randomized, double-blind, placebo-controlled study…

New Machine Learning Algorithm Could Help in Diagnosing MS Sooner

A new machine learning algorithm — designed to analyze healthcare records — could help in diagnosing multiple sclerosis (MS) sooner by identifying patients’ symptoms earlier. The algorithm, devised by scientists at the University of California San Francisco (UCSF), was described in a study titled “Embedding electronic health records…

Top 10 Multiple Sclerosis Stories of 2021

Multiple Sclerosis News Today brought you daily coverage of the latest scientific research, advances in treatment, and clinical trials related to multiple sclerosis (MS) throughout 2021. We look forward to continuing to be a resource for the MS community in 2022. Here are the Top 10 most-read articles of…

Results From Trial of Simvastatin for SPMS Expected in 2025

MS-STAT2, a clinical trial testing whether the cholesterol-lowering medication simvastatin might slow disability progression in secondary progressive multiple sclerosis (SPMS), has finished enrollment. A total of 964 people are now in the trial (NCT03387670), making it the largest progressive MS trial not run by a commercial…

Study: Anti-CD20 Therapies, Gilenya Lower Efficacy of COVID-19 Vaccines

Certain treatments for multiple sclerosis (MS) — specifically, anti-CD20 antibody therapies and Gilenya (fingolimod) — are likely to reduce the effectiveness of vaccines for COVID-19, according to a new study. “Highlighting groups who have mounted an inadequate vaccine response has already been helpful in guiding who should receive…

Little Evidence Acthar Gel Better Than Cheaper Substitutes: Review

There is minimal evidence that the expensive anti-inflammatory medication Acthar Gel (repository corticotropin injection) is more effective than inexpensive corticosteroids for the treatment of multiple sclerosis (MS) and other diseases, according to a new review paper. “We found no evidence where it was a conclusive slam dunk that…

Imaging of Retina Can Help in Monitoring Nerve Cell Damage in MS

An imaging technique called optical coherence tomography (OCT) could be useful for monitoring nervous system damage in people with multiple sclerosis (MS), especially early on in the disease, a study in patients reports. The study, “Optical coherence tomography in multiple sclerosis: A 3-year prospective multicenter study,”…

National MS Society Funds 13 New Research Projects

The National MS Society has announced it is funding 13 new research projects that seek to better understand the risk factors involved in multiple sclerosis (MS) development and progression. The funding — nearly $7 million in total — also will go to “rescue” 22 MS-related research projects that…

Report: Tecfidera, Aubagio Preferred RRMS Treatments in Canada

Tecfidera (dimethyl fumarate) and Aubagio (teriflunomide) are the preferred disease-modifying treatments for managing relapsing-remitting multiple sclerosis (RRMS) in Canada, according to a report from Spherix Global Insights. The report was part of Spherix’s RealTime Dynamix: Multiple Sclerosis (Canada) service, which collects data on market trends of MS…

Worsening of Disability Evident in Older Patients Who Stop DMTs

While older multiple sclerosis (MS) patients whose conditions are stable commonly stop using disease-modifying therapies (DMTs), a study indicates this decision can shortly lead to a marked disease worsening in a substantial portion of them. “Our results raise important questions about the accepted practice of discontinuing medications once MS…

Some Cell Therapies Work by Dying, New Research Shows

Certain cell therapies that hold promise for treating autoimmune diseases like multiple sclerosis might work not because of the way the cells live in the body during treatment, but because of how they die. A better understanding of how these cell therapies work “is important in designing treatment protocols…

1st Patient Enrolled in ENSURE Trials of IMU-838 in RRMS

Immunic Therapeutics has enrolled the first participant in its Phase 3 ENSURE clinical trial program, which is testing the company’s investigational treatment IMU-838 (vidofludimus calcium) in people with relapsing-remitting multiple sclerosis (RRMS). “Enrollment of the first patient in ENSURE … marks an important inflection point for Immunic as we…

Cholesterol Made by Nerve Cells Repairs Myelin Damage in Mice

Cholesterol made by neurons is crucial for repairing long-term damage to the myelin sheath, the fatty coating around nerve fibers that is damaged in multiple sclerosis (MS), according to a new report based on experiments done on mice. The finding suggests that increasing neuronal cholesterol synthesis may be helpful…

Vumerity Approved for RRMS in European Union

The oral medication Vumerity (diroximel fumarate) has been approved by the European Commission to treat adults with relapsing-remitting multiple sclerosis (RRMS). “This approval is a significant step forward in improving treatment adherence for people living with relapsing MS, which can make a meaningful difference on treatment…

sNfL Levels Linked to Relapse-free Disability Progression, Move to SPMS

Measuring levels of the protein serum neurofilament light chain (NfL) can help to identify people with relapsing-remitting multiple sclerosis (RRMS) at higher risk of relapse-free disability progression or conversion to secondary-progressive disease, according to a study from Germany. The study, “NfL predicts relapse-free progression in a longitudinal…

Study Sheds Light on How Tecfidera Kills Immune Cells

The multiple sclerosis (MS) treatment Tecfidera (dimethyl fumarate) triggers immune cell death by interacting with a protein called Keap-1, a new study reveals. The study, “Wdr1 and cofilin are necessary mediators of immune-cell-specific apoptosis triggered by Tecfidera,” was published in Nature Communications. Tecfidera is widely…

Ocrevus Still Top Therapy for Progressive MS Forms, Report Finds

Ocrevus (ocrelizumab) continues to be the most commonly prescribed therapy for progressive forms of multiple sclerosis (MS), including primary progressive MS (PPMS) and secondary progressive MS (SPMS), according to an analysis from the market intelligence firm Spherix Global Insights. However, other therapies are “gaining traction” among…