Transplanting patients with blood stem cells that originate from their own bone marrow can induce the remission of life-threatening, treatment-resistant lupus, according to a study that took place at Northwestern Memorial Hospital in Chicago. Researchers found that 50 percent of the 50 patients in the study had disease-free survival at five years with an overall five-year survival rate of 84 percent. The study is published in the February 1 issue of the Journal of the American Medical Association.
Lupus, an autoimmune disease in which immune cells attack an individuals own organs, affects an estimated 1.5 million people, mostly young females. "For this study, we enrolled patients who had either life- or organ-threatening lupus and had exhausted all available treatment options," says lead author Richard Burt, MD, chief, Division of Immunotherapy for Autoimmune Diseases, Northwestern Memorial Hospital in Chicago and associate professor of Medicine at Northwestern Universitys Feinberg School of Medicine. "We found that within an experienced center, high-dose chemotherapy and autologous stem cell transplant may be performed safely and result in disease remission and improvement or salvage of residual organ function in the majority of patients."
The study, which was launched in 1997 when Dr. Burt performed the countrys first stem cell transplant to treat lupus, enrolled 50 patients from 20 states and ran through January 2005. The authors conclude that that the findings provide the justification to launch a randomized study that would compare autologous stem cell transplant with continued standard of care.
Amanda Widtfeldt | EurekAlert!
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The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.
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