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Arthritis
Volume 2012 (2012), Article ID 239310, 7 pages
http://dx.doi.org/10.1155/2012/239310
Review Article

Prostaglandins and Rheumatoid Arthritis

Department of Immunology, School of Public Health, Tehran University of Medical Sciences, P.O. Box 6446, Tehran 14155, Iran

Received 21 July 2012; Revised 26 September 2012; Accepted 18 October 2012

Academic Editor: Peter M. van der Kraan

Copyright © 2012 Mohammad Javad Fattahi and Abbas Mirshafiey. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Rheumatoid arthritis (RA) is a chronic, autoimmune, and complex inflammatory disease leading to bone and cartilage destruction, whose cause remains obscure. Accumulation of genetic susceptibility, environmental factors, and dysregulated immune responses are necessary for mounting this self-reacting disease. Inflamed joints are infiltrated by a heterogeneous population of cellular and soluble mediators of the immune system, such as T cells, B cells, macrophages, cytokines, and prostaglandins (PGs). Prostaglandins are lipid inflammatory mediators derived from the arachidonic acid by multienzymatic reactions. They both sustain homeostatic mechanisms and mediate pathogenic processes, including the inflammatory reaction. They play both beneficial and harmful roles during inflammation, according to their site of action and the etiology of the inflammatory response. With respect to the role of PGs in inflammation, they can be effective mediators in the pathophysiology of RA. Thus the use of agonists or antagonists of PG receptors may be considered as a new therapeutic protocol in RA. In this paper, we try to elucidate the role of PGs in the immunopathology of RA.