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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Kunkel, S. L. Christie, M. I. Hogaboam, C. M. Delaney, S. Perretti, M. Carollo, M. |
| Description | Author Affiliation: Carollo M ( William Harvey Research Institute, Pharmacology Division, St. Bartholomew's and The Royal London School of Medicine and Dentistry, Charterhouse Square, London, EC1M 6BQ.) |
| Abstract | 1. Chemokine expression and function was monitored in an experimental model of granulomatous tissue formation after injection of croton oil in complete Freund's adjuvant (CO/CFA) into mouse dorsal air-pouches up to 28 days. 2. In the first week, mast cell degranulation and leukocyte influx (mononuclear cell, MNC, and polymorphonuclear cell, PMN) were associated with CXCR2, KC and macrophage inflammatory protein (MIP)-2 mRNA expression, as determined by TaqMan reverse transcriptase-polymerase chain reaction. KC ( approximately 400 pg x mg protein(-1), n=12) and MIP-2 (approximately 800 pg x mg protein(-1), n=12) proteins peaked at day 7, together with myeloperoxidase (MPO) activity. Highest MIP-1alpha (>1 ng x mg protein(-1), n=12) levels were measured at day 3. 3. After day 7, a gradual increase in CCR2 and CCR5 mRNA, monocyte chemoattractant protein (MCP)-1 mRNA and protein expression was measured. MCP-1 protein peaked at day 21 (approximately 150 pg x mg protein(-1), n=12) and was predominantly expressed by mast cells. A gradual increase in N-acetyl-beta-D-glucosaminidase (NAG) activity (maximal at 28 days) was also measured. 4. An antiserum against MIP-1alpha did not modify the inflammatory response measured at day 7 (except for a 50% reduction in MIP-1alpha levels), but provoked a significant increase in MPO, NAG and MCP-1 levels as measured at day 21 (n=6, P<0.05). An antiserum to MCP-1 reduced NAG activity at day 21 but increased MPO activity values (n=8, P<0.05). 5. In conclusion, we have shown that CO/CFA initiates a complex inflammatory reaction in which initial expression of MIP-1alpha serves a protective role whereas delayed expression of MCP-1 seems to have a genuine pro-inflammatory role. |
| ISSN | 00071188 |
| e-ISSN | 14765381 |
| Journal | British Journal of Pharmacology |
| Issue Number | 6 |
| Volume Number | 134 |
| Language | English |
| Publisher | Wiley Online Library(on behalf of The British Pharmacological Society) |
| Publisher Date | 2001-11-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | Open |
| Subject Keyword | Chemokine CCL2 Physiology Chemokines Biosynthesis Macrophage Inflammatory Proteins Receptors, Chemokine Animals Genetics Chemokine CCL3 Chemokine CCL4 Croton Oil Pharmacology Disease Models, Animal Freund's Adjuvant Pharmacokinetics Immunohistochemistry Inflammation Drug Therapy Leukocytes Immunology Mast Cells Drug Effects Mice Peroxidase RNA, Messenger Metabolism Research Support, Non-U.S. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Pharmacology |
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