macrophages

The week started with a bang, albeit with a hint of underlying anxiety. Friends and former work colleagues gathered during the first days of spring to chat in my sun-lathered back garden in South London. COVID-19 lateral flow tests had all been passed. Previously, we’d spent years working together on…

The pro-inflammatory environment characteristic of multiple sclerosis (MS) reduces the levels of PPAR-gamma — a receptor protein whose activation dampens inflammation — and impairs myelin processing in immune cells that clear myelin debris, a study suggests. These findings may help to better understand how PPAR-gamma regulates the function of these…

For the first time, scientists have shown that a protein known as CD36 on the surface of some immune cells is crucial for clearing myelin debris and suppressing nerve cell inflammation in disorders such as multiple sclerosis (MS), according to a new…

Altered levels of molecules important for cell regulation — called microRNAs — have been found in specific immune cells isolated from the blood of people with multiple sclerosis (MS), a study reveals. These immune cells, called monocytes, transform into macrophage cells,…

Scientists discovered new interaction between immune cells from the central nervous system (CNS) — consisting of the brain and spinal cord — and immune cells from the blood that may lead to new treatments for multiple sclerosis (MS) and other neurological diseases.

A specific type of immune cell in a particular activation state is linked to such immune diseases as multiple sclerosis (MS) and inflammatory bowel disease (IBD), a collaborative research study found. Disease-associated genetic variants — changes in DNA sequences or mutations in genes — can affect the response of immune…

A naturally occurring compound, a neurosteroid called allopregnanolone, prevents the activation of the TLR4 protein in macrophages  — a type of immune cell — and in the brain, new research in animal models found. This effect blocks an inflammatory response in cells, and may lead to new treatments for…

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…

Endothelial cells, those lining the inside of small blood vessels, promote clearance of myelin debris — a common detrimental outcome of demyelinating diseases such as multiple sclerosis (MS) or spinal cord injury. However, in its path to clear the brain from myelin debris, endothelial cells trigger more damaging mechanisms, promoting…

Phagocytes, diverse cells of the innate immune system, are known to both promote and prevent inflammation, depending on whether they are programed to damage tissue or to repair it. A study in mouse model of multiple sclerosis (MS) now reports that this programming is not fixed, and that pro-inflammatory…

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 hormonal system that controls blood pressure was also seen to counter inflammatory processes in a mouse model of multiple sclerosis (MS) by influencing immune cells to take on a more anti-inflammatory profile. Researchers believe that it might be possible to manipulate the system with drugs, so as to boost anti-inflammatory…

A molecule secreted by a parasite was seen to prevent autoimmune reactions in a mouse model of multiple sclerosis (MS). As this molecule, a protein factor or peptide, also worked to prevent diabetes, researchers suggest it might be developed into a potential treatment for autoimmune diseases. The study, “A parasite-derived 68-mer peptide ameliorates…

One June 3, a workshop titled “Metabolism in MS and Related Conditions” was presented at the 2016 Annual Meeting of the Consortium of Multiple Sclerosis Centers (CMSC), held June 1-4 in National Harbor, Maryland. One of the speakers was Dr. David Sheikh-Hamad, professor of medicine-nephrology at Baylor College of…

Findings from two studies, recently published in the Journal of Clinical Investigation, indicate that high levels of salt alter the stability of the immune system and make it more susceptible to inflammation. The studies, which were led by Dr. David Hafler from Yale University and Dr. Dominik…

In a new study entitled “Transcription factor Nr4a1 couples sympathetic and inflammatory cues in CNS-recruited macrophages to limit neuroinflammation,” a team of scientists discovered the mechanism by which autoreactive T cells are capable of penetrating a patient’s brain and induce multiple sclerosis. The study was recently published in the advance online issue…