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Systemic lupus erythematosus is a disorder of the immune system in which the body produces antibodies that attack its own tissue - an autoimmune disease. The antibodies attack different parts of the cell, such as the DNA. The disorder can affect many parts of the body such as the joints, skin, kidneys, lungs, heart and blood vessels. Antibodies are also directed against the nervous system leading to headaches and psychological problems that include paranoia, mania, and schizophrenia, seizures and stroke. 4 out of 10,000 people are affected, particularly women of child-bearing age and those of African and Asian descent. There is no cure.
Beyond the knowledge that antibodies are involved, scientists have hitherto had no idea precisely how lupus destroys the nervous system. Now (Nature Medicine, Vol. 7, No. 11, November 2001), researchers at Albert Einstein College of Medicine have discovered that lupus antibodies attach to parts of a receptor that is commonly found on nerves-the NR2 subunits of the NMDA receptor. The antibodies are believed to destroy neurons by attaching to these receptors and triggering apoptosis, or programmed cell death, of the nerves. Understanding how a disease occurs at the molecular level opens up opportunities for developing new treatments for the disease. Brian Kotzin and Elizabeth Kozora of the University of Colorado discuss the findings in an accompanying News & Views article. Author contact: Dr. Betty Diamond Departments of Microbiology, Immunology and Medicine Albert Einstein College of Medicine Bronx, NY, USA Tel: +1 718 430-4081 Fax: +1 718 430-8711 Email: diamond@aecom.yu.edu Drs Brian Kotzin and Elizabeth Kozora University of Colorado Health Sciences Center Division of Clinical Immunology (B-164) 4200 E Ninth Avenue Denver, CO, USA Tel: +1 303 315-6977 Fax: +1 303 315-7642 Email: brian.kotzin@uchsc.edu (C) Nature Medicine press release.
Message posted by: Trevor M. D'Souza
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