|
|
||||||||
Departments of Pediatrics, Molecular Biology and Pharmacology, and Obstetrics and Gynecology, Washington University School of Medicine and St. Louis Children's Hospital, St. Louis, Missouri 63110
Anorexia and weight loss are frequent complications of acute and chronic infections and result from induction of cytokines, prostaglandins, and other inflammatory mediators that are critical for pathogen elimination. Selective attenuation of the hypophagic response to infection and maintenance of the production of factors essential for infection control would be a useful addition to antimicrobial therapy in the treatment of human disease. Here, we evaluate the relative contribution of cyclooxygenase (COX)-1- and COX-2-derived prostaglandins to anorexia and weight loss precipitated by systemic immune activation by lipopolysaccharide (LPS). Using COX isoform-selective pharmacological inhibitors and gene knockout mice, we found that COX-2 inhibition during LPS-induced inflammation results in preserved food intake and maintenance of body weight, whereas COX-1 inhibition results in augmented and prolonged weight loss. Regulation of neuropeptide Y, corticotropin-releasing hormone, leptin, and interleukin-6 does not change as a function of COX-2 inhibition after LPS administration. Our data implicate COX-2 inhibition as a therapeutic target to maintain nutritional status while still allowing a normal cytokine response during infection.
nonsteroidal anti-inflammatory drugs; knockout mice; appetite; cyclooxygenase-2
This article has been cited by other articles:
![]() |
T. Hayashi, H. B. Cottam, M. Chan, G. Jin, R. I. Tawatao, B. Crain, L. Ronacher, K. Messer, D. A. Carson, and M. Corr Mast cell-dependent anorexia and hypothermia induced by mucosal activation of Toll-like receptor 7 Am J Physiol Regulatory Integrative Comp Physiol, July 1, 2008; 295(1): R123 - R132. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Granado, A. I Martin, M{a} A. Villanua, and A. Lopez-Calderon Experimental arthritis inhibits the insulin-like growth factor-I axis and induces muscle wasting through cyclooxygenase-2 activation Am J Physiol Endocrinol Metab, June 1, 2007; 292(6): E1656 - E1665. [Abstract] [Full Text] [PDF] |
||||
![]() |
L. Elander, L. Engstrom, M. Hallbeck, and A. Blomqvist IL-1beta and LPS induce anorexia by distinct mechanisms differentially dependent on microsomal prostaglandin E synthase-1 Am J Physiol Regulatory Integrative Comp Physiol, January 1, 2007; 292(1): R258 - R267. [Abstract] [Full Text] [PDF] |
||||
![]() |
E. Pecchi, M. Dallaporta, S. Thirion, C. Salvat, F. Berenbaum, A. Jean, and J.-D. Troadec Involvement of central microsomal prostaglandin E synthase-1 in IL-1{beta}-induced anorexia Physiol Genomics, May 16, 2006; 25(3): 485 - 492. [Abstract] [Full Text] [PDF] |
||||
![]() |
P. S. Biswas, K. Banerjee, B. Kim, P. R. Kinchington, and B. T. Rouse Role of Inflammatory Cytokine-Induced Cycloxygenase 2 in the Ocular Immunopathologic Disease Herpetic Stromal Keratitis J. Virol., August 15, 2005; 79(16): 10589 - 10600. [Abstract] [Full Text] [PDF] |
||||
![]() |
T. W. Davis, B. S. Zweifel, J. M. O'Neal, D. M. Heuvelman, A. L. Abegg, T. O. Hendrich, and J. L. Masferrer Inhibition of Cyclooxygenase-2 by Celecoxib Reverses Tumor-Induced Wasting J. Pharmacol. Exp. Ther., March 1, 2004; 308(3): 929 - 934. [Abstract] [Full Text] [PDF] |
||||
![]() |
F. Lugarini, B. J. Hrupka, G. J. Schwartz, C. R. Plata-Salaman, and W. Langhans A role for cyclooxygenase-2 in lipopolysaccharide-induced anorexia in rats Am J Physiol Regulatory Integrative Comp Physiol, October 1, 2002; 283(4): R862 - R868. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. H. Swiergiel and A. J. Dunn Distinct Roles for Cyclooxygenases 1 and 2 in Interleukin-1-Induced Behavioral Changes J. Pharmacol. Exp. Ther., September 1, 2002; 302(3): 1031 - 1036. [Abstract] [Full Text] [PDF] |
||||
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| Visit Other APS Journals Online |