期刊
JOURNAL OF AUTOIMMUNITY
卷 37, 期 4, 页码 273-288出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jaut.2011.08.002
关键词
Autoimmunity; Biologic agents; Infection and immunity; Immunosuppression
类别
Biological agents represent a major advance in the treatment of rheumatic diseases, most particularly in the prevention of irreversible structural damage. While generally well tolerated, their increasing use continues to reveal a variety of immune-mediated adverse effects. The most frequent adverse events are infusion reactions and injection site reactions, but despite their fairly common occurrence the precise mechanisms are not fully understood. Another adverse event that became appreciated early in the era of biologicals is the increased risk of Mycobacterium tuberculosis and other granulomatous infections in patients treated with tumor necrosis factor (TNF alpha) antagonists. Although it is evident that this enhanced susceptibility to intracellular infections must be due to immunosuppression arising from the blockade of TNF alpha, the mechanisms have not been fully elucidated; such an understanding is likely to provide important insights into the role of TNF alpha in granulomatous and other infectious diseases. In addition, the biologicals may paradoxically induce autoimmunity. The development of autoantibodies is seen in a considerable proportion of patients, but clinical autoimmune disease develops much less commonly, including systemic lupus erythematosus, multiple sclerosis and other demyelinating diseases, psoriasis, sarcoidosis, and interstitial lung disease. The mechanisms leading to their induction are very poorly understood, but an intriguing hypothesis is that interferon a provides a common link, at least for lupus, psoriasis and possibly sarcoidosis. Finally, the potential risk of infection with use of the biologicals is an issue that clinicians should always be aware of. These comments aside, the biologics are the most important advance in the treatment of rheumatic disease in the history of rheumatology and their usage has not only greatly helped patient care, but also provided key data on the immunobiology of the disease processes. (C) 2011 Elsevier Ltd. All rights reserved.
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