autoimmune diseases

The National Institutes of Health (NIH) awarded a $2.3 million grant to a bioengineer at Indiana University’s Luddy School of Informatics, Computing and Engineering to improve diagnosis and treatment of autoimmune diseases, such as multiple sclerosis (MS). The project aims to find ways to detect disease-associated cells based on their ability…

A new research project will seek to understand the development of immune cells that drive autoimmune diseases such as multiple sclerosis (MS). The project will be led by Leszek Ignatowicz, PhD, a professor in the Institute for Biomedical Sciences at Georgia State University, and will be funded by…

After repeated exposure to a fragment of the myelin protein — the target of autoimmune attack in multiple sclerosis (MS) — immune cells in mice were reprogrammed to be tolerant to myelin, suppressing the immune response associated with the disease, a study revealed.  Researchers showed that in these…

Diagnostic guidelines for multiple sclerosis (MS) should be amended to first rule out the presence of neuromyelitis optica spectrum disorder (NMOSD), a neurological inflammatory disease that also affects the brain and spinal cord, a study recommends. The study, “Can a Diagnosis of Multiple Sclerosis Be…

With the development of a cell line that produces significant amounts of Immutep‘s treatment candidate, IMP761, the company is preparing to advance its antibody into clinical testing for autoimmune conditions, including multiple sclerosis (MS). Immutep also reports that is adapting its manufacturing operations to comply with…

The lack of a “chaperone” protein — called HLA-DO — that helps to protect the body against threats by presenting specific molecules (antigens) to immune cells to drive a response, promoted the development of a self-reactive immune system and autoimmune disease, according to a study in mice. Particularly, the work showed…

Using a mix of broad diagnostic terms and more disease-specific ones may help physicians and patients to better communicate symptoms of autoimmune disorders like multiple sclerosis (MS) that are not always obvious or easy to explain, a study reported. The study, “Using autoimmune strategically: Diagnostic lumping, splitting,…

BioMed X announced a new collaboration with Merck to create a joint research group to investigate the role of the intestinal epithelial barrier in the development and progression of autoimmune diseases, including multiple sclerosis (MS). The intestinal epithelial barrier is a physical border between the gut and the rest…

Magenta Therapeutics will continue to advance its investigational conditioning therapy CD45-ADC for patients with autoimmune diseases undergoing stem cell transplants, the company highlighted in a progress report. CD45-ADC is a therapy designed to remove disease-causing immune cells in a safer way when preparing patients for a stem…

A cluster of immune-related genes located in the X chromosome are more active in the X chromosome inherited from the mother than in the one from the father, a new mouse study shows. These findings may help explain why women have higher rates of autoimmune diseases, such as multiple…

A protein involved in cell metabolism, called PKM2, was found to be central to switching ‘on’ immune cells that play critical roles in inflammatory and autoimmune diseases such as multiple sclerosis (MS), an early study reports. Blocking the activity of PKM2 (pyruvate kinase M2) eased MS-like symptoms…

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…

The transcription factor family AP-1 is crucial for the proper activation of immune T-cells, a new study shows, and this finding may have important implications for autoimmune diseases such as multiple sclerosis. The study, titled “AP-1 activity induced by co-stimulation is required for chromatin opening during…

Depleting microbes in the gut of mice led to an altered fear response, changes in gene expression in brain immune cells and changes in brain chemistry — returning to a more normal state after their gut microbes were restored, but only if done early in life, a study…

Females of certain species — like humans and mice — have a known ability to produce more of the gene Kdm6a than males because it’s located on the X chromosome, of which females have two. Kdm6a is also quite active in immune system T-cells, a study found, and silencing it in a mice model…

Though known mainly for killing tumor and virally infected cells, a T-cell subtype may restrain immune responses and be protective in autoimmune diseases such as multiple sclerosis (MS), according to new research. The study, “Opposing T cell responses in experimental autoimmune encephalomyelitis,” was published recently in…

Vaccines are not a risk factor for multiple sclerosis (MS), a large data analysis spanning more than 12,250 MS patients in Germany shows. Fewer vaccinations were given to people who — five years later — would be diagnosed with MS, compared to those who would be diagnosed with…

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…

Increased production of an anti-inflammatory molecule called interleukin (IL)-10, and suppression of a subtype of immune T-cells, may mean that a fatty acid called pentanoate is effective against inflammatory and autoimmune diseases such as multiple sclerosis (MS), according to new research in mice. The study, “The…

A protein called Satb1 appears to be the "on switch" that turns a type of T-cell called Th17 from its typical protective role into one that is disease-causing, and key in the development of multiple sclerosis (MS) and other inflammatory autoimmune disorders, a study reports. These findings suggest that Satb1 may be a therapeutic target for autoimmune diseases like MS. The research article, “Satb1 regulates the effector program of encephalitogenic tissue Th17 cells in chronic inflammation,” was published in the journal Nature Communications. Immune cells called T-helper 17 (Th17) cells play a range of roles in immunity, including protecting against infecting pathogens — bacteria, viruses, and other microorganisms that can cause disease. But Th17 cells are also players in the development of such autoimmune diseases as MS, psoriasis, inflammatory bowel disease, and rheumatoid arthritis. This is because Th17 cells can be stimulated to become T-cells that engage in pathogenic, or disease-causing, immune programs. How Th17 cells switch from their typical and helpful immunity role to that of a pathogenic actor has not been resolved, although it is thought critical to treating inflammatory autoimmune diseases. An international team led by researchers at Osaka University and Kyoto University, in Japan, tried to identify the mechanism behind the disease-causing program of Th17 cells. To do so, they built upon previous findings showing that a protein regulator called Satb1 is important in the development of Th17 cell subsets. "We have known for some time that Satb1 is indispensable for the development of T-cells in the thymus. However, how it is involved in the regulation of pathogenic processes of Th17 cells in inflamed tissues had not been examined," Keiko Yasuda, MD, the study's lead author, said in a press release. Researchers used a standard mouse model of MS, called experimental autoimmune encephalomyelitis (EAE) mice. These animals had genetically-modified Th17 cells that lacked Satb1. Researchers tested how Th17 cells lacking Satb1 acted when subject to inflammatory conditions, and how they were stimulated to activate a "pathogenic effector program." Interestingly, these modified mice were resistant to the development of EAE, or MS-like, disease. Researchers saw fewer Th17 cells infiltrating the animals' spinal cord. Also, Th17 cells lacking Satb1 showed poorer production of key pathogenic signaling molecules in autoimmunity, notably one called granulocyte-macrophage colony-stimulating factor (GM-CSF). GM-CSF is known to cause localized tissue inflammation in MS and other inflammatory autoimmune diseases. Researchers went on to show that Satb1 can act as a switch between benign and pathogenic Th17 cells, depending on their exposure to healthy or inflammatory conditions. They found molecules that boost the pathogenicity of Th17 cells, such as Bhlhe40, and molecules that promote normal immune function, such as PD-1.  Of note, PD-1 is shut down when Th17 cells engage in their pathogenic effector program. These results showed Satb1 to be a key regulator of Th17 cell pathogenicity in these MS mice. Halting Th17 cells from making Satb1 may offer a way of treatting various autoimmune diseases. “Together, our findings, in addition to providing novel insights into the molecular mechanisms underlying the pathogenic program of tissue Th17 cells in mice, may help design novel immunotherapeutic approaches such as small molecule modifiers of Satb1 for the treatment of autoimmune diseases,” the researchers wrote. Future studies are needed to confirm these results in people. A previous study in people also suggested a link between Satb1 and the pathogenic function of Th17 cells in the central nervous system of MS patients. Overall, "our results suggest that manipulating Satb1 gene expression in Th17 cells could form the basis of novel treatments for various autoimmune diseases caused by Th17 cells. If we can prevent the pathogenic processes of Th17 cells, we may be able to alleviate or even eliminate disease symptoms," concluded Shimon Sakaguchi, PhD, one of the study's senior authors.

A tiny molecule known as microRNA-142 plays a key role in the prevention of autoimmune responses through immune cells called regulatory T-cells (Tregs), according to a new study of  mice. These findings could enable new strategies to treat multiple sclerosis (MS) and other autoimmune diseases, the scientists said. The…

Previously unknown immune cell subtypes are present in the inflamed brain of mice models of multiple sclerosis (MS), a new study reports. According to the researchers, these subsets of myeloid cells (cells derived from hematopoietic stem cells in the bone marrow) can offer a strong basis for therapeutic targets in neuroinflammatory and…

The pro-inflammatory Th17 cells that characterize multiple sclerosis (MS) may also underlie symptoms of obsessive-compulsive disorder (OCD), results of a mouse study show. The study, “Auto-Reactive Th17-Cells Trigger Obsessive-Compulsive-Disorder Like Behavior in Mice With Experimental Autoimmune Encephalomyelitis,” was published in the journal Frontiers in Immunology. “For the first time,…

Researchers at Yale uncovered a way that high-salt diets may trigger inflammation and possibly contribute to the development of autoimmune diseases such as multiple sclerosis (MS). Their study, “Activated β-catenin in Foxp3+ regulatory T cells links inflammatory environments to autoimmunity,” was recently published in the journal Nature…

Nyrada, a subsidiary company of Noxopharm, discovered a set of novel compounds that can cross the blood-brain barrier and blood-nerve barriers, and inhibit a master regulator of chronic inflammation in autoimmunity called IRAK4. The Australian company believes that these novel IRAK4 inhibitors may represent an alternative strategy to…

A diet that incorporates non-fermentable fiber — a common component of a vegetarian diet — during early life can help prevent the onset of autoimmune diseases such as multiple sclerosis (MS), a new study shows. The study, “Dietary non-fermentable fiber prevents autoimmune neurological disease by changing gut metabolic and…

Girls given the quadrivalent human papillomavirus (HPV4) vaccination, commercialized as Gardasil, showed no increased risk of developing autoimmune diseases like multiple sclerosis (MS), according to a new Canadian study. The time since vaccination and the number of vaccine doses given also did not correlate with diagnoses of such disorders, supporting…

The American Autoimmune Related Diseases Association (AARDA) is partnering with Allegheny Health Network (AHN) and its newly opened Autoimmunity Institute — based in Pittsburgh, Pennsylvania — to study the costs of autoimmune disease to patients in the U.S., including that of just getting a correct diagnosis. AARDA, a non-profit that…

A compound produced by immune cells is able to treat psoriasis – a skin disorder – in mice, and may be effective against other autoimmune diseases, such as multiple sclerosis, according to a recent study. The study, “Electrophilic properties of itaconate and derivatives regulate the IκBζ–ATF3 inflammatory…

A global collaboration of researchers led by Belgium’s Flanders Institute for Biotechnology has determined the structure of the pro-inflammatory cytokine IL-23 and its receptor IL-23R, which could be potential targets for treating multiple sclerosis (MS) and other autoimmune diseases. Their study, “Structural Activation of Pro-inflammatory Human Cytokine…