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Modified bone marrow cells can help recovery in an animal model of multiple sclerosis
April 10, 2007A new study published in PLoS Medicine has shown that modified bone marrow cells can help recovery in an animal model of multiple sclerosis (MS). Harald Neumann and colleagues from the University of Bonn modified myeloid precursor cells to express a protein (triggering receptor expressed on myeloid cells-2 (TREM2), which is normally made by microglia-a cell from the nervous system-and injected these TREM2-expressing cells into the veins of mice with experimental autoimmune encephalomyelitis (EAE, an animal model of MS).
The researchers examined the migration of these cells into the spinal cord of the mice, their effect on the symptoms of EAE, and what effect there was on the clearance of cell debris and inflammatory responses in the spinal cord of the mice. They found that neither TREM2-expressing nor control myeloid precursor cells migrated into the spinal cord when injected into healthy mice or into animals just beginning to show the symptoms of EAE. However, both control and modified cells migrated into the spinal cord when injected into animals when EAE symptoms were at their peak. The injection of TREM2-expressing myeloid precursor cells (but not control myeloid precursor cells) at this time reduced EAE symptoms and nerve damage, and halted loss of myelin and also increased the clearance of cell debris and myelin fragments.
These findings will need to be repeated in further animal models before the implications for human disease are clear; however, they open up an avenue of further research.
Public Library of Science
Public Library of Science
Multiple Sclerosis Current Events and Multiple Sclerosis News RSSDrug studied as possible treatment for spinal injuries
Researchers have shown how an experimental drug might restore the function of nerves damaged in spinal cord injuries by preventing short circuits caused when tiny "potassium channels" in the fibers are exposed.
CSHL team solves structure of NMDA receptor unit that could be drug target for neurological diseases
A team of scientists at Cold Spring Harbor Laboratory (CSHL) reports on Thursday their success in solving the molecular structure of a key portion of a cellular receptor implicated in Alzheimer's, Parkinson's, and other serious illnesses.
Men leave: Separation and divorce far more common when the wife is the patient
A woman is six times more likely to be separated or divorced soon after a diagnosis of cancer or multiple sclerosis than if a man in the relationship is the patient, according to a study that examined the role gender played in so-called "partner abandonment." The study also found that the longer the marriage the more likely it would remain intact.
Neurologists Investigate Possible New Underlying Cause of MS
Neurologists at the University at Buffalo are beginning a research study that could overturn the prevailing wisdom on the cause of multiple sclerosis (MS).
Scientists demonstrate link between genetic defect and brain changes in schizophrenia
Researchers at the University of North Carolina at Chapel Hill School of Medicine have found that the 22q11 gene deletion - a mutation that confers the highest known genetic risk for schizophrenia - is associated with changes in the development of the brain that ultimately affect how its circuit elements are assembled.
Gentle touch may aid multiple sclerosis patients
While gripping, lifting or manipulating an object such as drinking from a cup or placing a book on a shelf is usually easy for most, it can be challenging for those with neurological diseases such as multiple sclerosis or Parkinson's, or for people who had a stroke. For them, the tight gripping can cause fatigue, making everyday tasks difficult.
Urate in blood and spinal fluid may predict slower decline in patients with Parkinson's disease
Higher concentration of urate (an antioxidant) in the blood and spinal fluid of patients with early Parkinson's disease is associated with slower rates of clinical decline.
Oxidized form of a common vitamin may bring relief for ulcerative colitis
New research published in the Journal of Leukocyte Biology finds retinoic acid may alleviate ulcerative colitis and similar irritable bowel diseases.
Visionary concept earns La Jolla Institute scientist prestigious NIH Pioneer Award
A scientist at the La Jolla Institute for Allergy & Immunology has received one of the National Institutes of Health (NIH)'s top awards -- the 2009 NIH Director's Pioneer Award.
Ben-Gurion University Alzheimer's researcher demonstrates specific immune response to vaccine
A researcher who is working on a vaccine for Alzheimer's disease (AD) has demonstrated that it is possible to test and measure specific immune responses in mice carrying human genes and to anticipate the immune response in Alzheimer's patients.
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