PMID- 10541046 OWN - NLM STAT- MEDLINE DCOM- 19991105 LR - 20190826 IS - 0165-2478 (Print) IS - 0165-2478 (Linking) VI - 70 IP - 1 DP - 1999 Oct 1 TI - Monocyte chemoattractant protein-1 and macrophage inflammatory protein-2 production is inhibited by taurine chloramine in rat C6 glioma cells. PG - 9-14 AB - Taurine monochloramine (Tau-Cl) is formed through the actions of a halide-dependent myeloperoxidase system associated with polymorphonuclear leukocytes (PMN). Tau-Cl inhibits production of inflammatory mediators by activated macrophages, and PMN. Recently, Tau-Cl was shown to inhibit production of nitric oxide and prostaglandin E2 by activated C6 glioma cells. Since chemokines, secreted by activated glial cells, play a prominent role in eliciting inflammatory responses in the central nervous system, the effects of Tau-Cl on production of monocyte chemoattractant protein-1 (MCP-1) and macrophage inflammatory protein-2 (MIP-2) were determined in activated C6 glioma cells. Tau-Cl inhibited production of MCP-1 and MIP-2 in a concentration-dependent manner, and was most potent against MCP-1. Tau-Cl exerted a transient inhibition of the temporal expression of MCP-1 and MIP-2 mRNAs during the first 4 h of activation. Although both chemokine mRNA levels were similar to those of control cells after 8-24 h of activation, production of the chemokine proteins, especially MCP-1, remained markedly low. These results suggest that Tau-Cl inhibits production of MCP-1 and MIP-2 in activated C6 cells primarily through post-transcriptional mechanisms. FAU - Liu, Y AU - Liu Y AD - Department of Developmental Biochemistry, New York State Institute for Basic Research in Developmental Disabilities, Staten Island 10314-6330, USA. FAU - Schuller-Levis, G AU - Schuller-Levis G FAU - Quinn, M R AU - Quinn MR LA - eng GR - HL-49942/HL/NHLBI NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - Netherlands TA - Immunol Lett JT - Immunology letters JID - 7910006 RN - 0 (Chemokine CCL4) RN - 0 (Chemokine CXCL2) RN - 0 (Inflammation Mediators) RN - 0 (Macrophage Inflammatory Proteins) RN - 0 (Monokines) RN - 0 (RNA, Messenger) RN - 1EQV5MLY3D (Taurine) RN - 51036-13-6 (N-chlorotaurine) SB - IM MH - Animals MH - Chemokine CCL4 MH - Chemokine CXCL2 MH - Glioma MH - Inflammation Mediators/*pharmacology MH - Macrophage Inflammatory Proteins/*biosynthesis MH - Monokines/*biosynthesis MH - Neuroglia/*drug effects/metabolism MH - RNA, Messenger/metabolism MH - Rats MH - Taurine/*analogs & derivatives/pharmacology MH - Tumor Cells, Cultured EDAT- 1999/11/30 00:00 MHDA- 1999/11/30 00:01 CRDT- 1999/11/30 00:00 PHST- 1999/11/30 00:00 [pubmed] PHST- 1999/11/30 00:01 [medline] PHST- 1999/11/30 00:00 [entrez] AID - S0165-2478(99)00119-4 [pii] AID - 10.1016/s0165-2478(99)00119-4 [doi] PST - ppublish SO - Immunol Lett. 1999 Oct 1;70(1):9-14. doi: 10.1016/s0165-2478(99)00119-4.