Inflammation Research

, Volume 49, Issue 1, pp 20–26

Differential anti-inflammatory effects of immunosuppressive drugs: Cyclosporin, rapamycin and FK-506 on inducible nitric oxide synthase, nitric oxide, cyclooxygenase-2 and PGE2 production

Authors

  • M. G. Attur
    • Department of Rheumatology, Hospital for Joint Diseases, 301 East 17th Street, Rm. 1600, New York, NY 10003, USA, Fax +12125987604
  • R. Patel
    • Department of Rheumatology, Hospital for Joint Diseases, 301 East 17th Street, Rm. 1600, New York, NY 10003, USA, Fax +12125987604
  • G. Thakker
    • Department of Cardiothoracic Surgery, Weil Medical College of Cornell University, New York, NY, USA
  • P. Vyas
    • Department of Microbiology, MS University of Baroda, Baroda, India
  • D. Levartovsky
    • 11 Rokach Street, Ramam-Gaw, 5253A, Israel
  • P. Patel
    • Department of Rheumatology, Hospital for Joint Diseases, 301 East 17th Street, Rm. 1600, New York, NY 10003, USA, Fax +12125987604
  • S. Naqvi
    • Department of Rheumatology, Hospital for Joint Diseases, 301 East 17th Street, Rm. 1600, New York, NY 10003, USA, Fax +12125987604
  • R. Raza
    • Department of Rheumatology, Hospital for Joint Diseases, 301 East 17th Street, Rm. 1600, New York, NY 10003, USA, Fax +12125987604
  • K. Patel
    • Department of Rheumatology, Hospital for Joint Diseases, 301 East 17th Street, Rm. 1600, New York, NY 10003, USA, Fax +12125987604
  • D. Abramson
    • Department of Rheumatology, Hospital for Joint Diseases, 301 East 17th Street, Rm. 1600, New York, NY 10003, USA, Fax +12125987604
  • G. Bruno
    • Department of Rheumatology, Hospital for Joint Diseases, 301 East 17th Street, Rm. 1600, New York, NY 10003, USA, Fax +12125987604
  • S. B. Abramson
    • Department of Rheumatology, Hospital for Joint Diseases, 301 East 17th Street, Rm. 1600, New York, NY 10003, USA, Fax +12125987604
  • A. R. Amin
    • Department of Rheumatology, Hospital for Joint Diseases, 301 East 17th Street, Rm. 1600, New York, NY 10003, USA, Fax +12125987604

DOI: 10.1007/PL00000199

Cite this article as:
Attur, M., Patel, R., Thakker, G. et al. Inflamm. res. (2000) 49: 20. doi:10.1007/PL00000199

Abstract.

Objective and Design: Cyclosporin, FK-506 and rapamycin have similar but distinct modes of interaction with cyclophilins, calcineurins and transcription factors. These immunosuppressive drugs have also been shown to inhibit cytotoxic and inflammatory responses in macrophage. Therefore, we evaluated the mechanism of action of these drugs on iNOS and COX-2 expression by macrophages, the products of which (NO and PGE2) have cytotoxic and pro-inflammatory activities.¶Materials and Methods: The murine macrophage cell line RAW 264.7 was grown as monolayer cultures. The effects of pharmacologically relevant concentrations of cyclosporin, rapamycin and FK-506 were evaluated in the presence and absence of lipopolysaccharide (LPS) which is a known inducer of iNOS and COX-2. Subsequently the expression of iNOS and COX-2 were analyzed by Western and Northern analysis. The production of NO and PGE2 were assayed by Greiss and RIA respectively.¶Results: Cyclosporin (1-5 μg/ml) and rapamycin (1.0-10 nM) but not FK-506 (5-10 nM) inhibited both iNOS and COX-2 expression at mRNA level which led to significant inhibition of NO and PGE2 production.¶Conclusion: These studies characterize differential mechanistic capacity of the immunophilin-binding immunosuppressive drugs (comparable to hydrocortisone) to inhibit both iNOS and COX-2 expression. Inhibition of iNOS and COX-2 mRNA accumulation by cyclosporin and rapamycin seem to be distinct. These studies also highlight potential anti-inflammatory properties of these drugs in addition to their known immunosuppressive activity.¶

Key words: iNOS - COX-2 - Cyclosporin - Rapamycin - FK-506

Copyright information

© Birkhäuser Verlag, 2000