PMID- 16039552 OWN - NLM STAT- MEDLINE DCOM- 20051213 LR - 20081121 IS - 1567-5769 (Print) IS - 1567-5769 (Linking) VI - 5 IP - 11 DP - 2005 Oct TI - Modulation of acute inflammation by targeting glycosaminoglycan-cytokine interactions. PG - 1622-32 AB - Glycosaminoglycans (GAGs) located on cellular membranes and the extracellular matrix (ECM) are able to interact with chemokines and pro-inflammatory cytokines, leading to local cytokine/chemokine accumulation. The tissue-bound cytokines/chemokines function in promoting leukocyte migration and activation, contributing to local inflammation. Hence, targeting of GAG-cytokine interactions may provide an avenue for the attenuation of inflammatory responses. A cationic peptide (MC2) derived from the heparin-binding sequence of mouse IFN-gamma was previously shown by our laboratory to delay allograft rejection in an animal model. In order to further investigate potential anti-inflammatory properties of the MC2 peptide, we have studied its activity in an acute peritoneal inflammation model. Groups of C57Bl/6 mice were injected intraperitoneally with either ConA or thioglycollate and treated with saline (control), the MC2 peptide or two control cationic peptides, poly-l-lysine (PLL) and poly-l-arginine (PLA). Treatment with the MC2 peptide, but not PLA or PLL, resulted in statistically significant reductions in total cell numbers, concentration of total proteins and concentrations of pro-inflammatory cytokines (TNFalpha, IL-6 or IL-1 beta) in peritoneal lavage fluids, without alterations to the qualitative cellular composition of the exudate. These results suggest that targeting GAG-cytokine interaction is a viable approach to reduce inflammation. FAU - Cripps, James G AU - Cripps JG AD - Department of Pathology and Laboratory Medicine, School of Medicine, University of Louisville, Louisville, KY 40292, USA. FAU - Crespo, Fabian A AU - Crespo FA FAU - Romanovskis, Peteris AU - Romanovskis P FAU - Spatola, Arno F AU - Spatola AF FAU - Fernandez-Botran, Rafael AU - Fernandez-Botran R LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Netherlands TA - Int Immunopharmacol JT - International immunopharmacology JID - 100965259 RN - 0 (Anti-Inflammatory Agents) RN - 0 (Cytokines) RN - 0 (Glycosaminoglycans) RN - 0 (MC2 peptide) RN - 0 (MC2 protein, mouse) RN - 0 (Peptide Fragments) RN - 0 (Proteins) RN - 0 (Thioglycolates) RN - 11028-71-0 (Concanavalin A) RN - 82115-62-6 (Interferon-gamma) SB - IM MH - Animals MH - Anti-Inflammatory Agents/*pharmacology MH - Apoptosis/drug effects MH - Ascitic Fluid/cytology/metabolism MH - Cells, Cultured MH - Concanavalin A MH - Cytokines/metabolism/*physiology MH - Female MH - Glycosaminoglycans/metabolism/*physiology MH - Inflammation/chemically induced/*drug therapy/metabolism MH - Interferon-gamma/*pharmacology MH - Mice MH - Mice, Inbred C57BL MH - Peptide Fragments/*pharmacology MH - Proteins/*pharmacology MH - Thioglycolates EDAT- 2005/07/26 09:00 MHDA- 2005/12/15 09:00 CRDT- 2005/07/26 09:00 PHST- 2004/09/16 00:00 [received] PHST- 2005/04/26 00:00 [revised] PHST- 2005/04/28 00:00 [accepted] PHST- 2005/07/26 09:00 [pubmed] PHST- 2005/12/15 09:00 [medline] PHST- 2005/07/26 09:00 [entrez] AID - S1567-5769(05)00115-3 [pii] AID - 10.1016/j.intimp.2005.04.010 [doi] PST - ppublish SO - Int Immunopharmacol. 2005 Oct;5(11):1622-32. doi: 10.1016/j.intimp.2005.04.010.