Macrophage Derived Platelet Activating Factor Implicated in the Resolution Phase of Gouty Inflammation
Human blood derived in vitro differentiated monocytes or macrophages are a population of cells which have been investigated over the years to determine the role these cells play in the resolution phase of gout. Macrophages are able to phagocytose monosodium urate monohydrate (MSU) crystals without...
Saved in:
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2014-01-01
|
| Series: | International Journal of Inflammation |
| Online Access: | http://dx.doi.org/10.1155/2014/526496 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849685556259192832 |
|---|---|
| author | Darshna Yagnik |
| author_facet | Darshna Yagnik |
| author_sort | Darshna Yagnik |
| collection | DOAJ |
| description | Human blood derived in vitro differentiated monocytes or macrophages are a population of cells which have been investigated over the years to determine the role these cells play in the resolution phase of gout. Macrophages are able to phagocytose monosodium urate monohydrate (MSU) crystals without releasing inflammatory factors. This study analysed macrophage platelet activating factor secretion and its possible role in the pathway of gout resolution. Analysis of sunatants from in vitro differentiated macrophages stimulated with MSU crystals revealed the secretion of platelet activating factor (PAF) 1.54±0.10 mean ± SEM; ng/mL per 106 cells. This secretion was absent in immature monocytes treated similarly. When these monocytes were pretreated with recombinant human PAF-acetylhydrolase (rhuPAF-AH) and MSU crystals resulted in TNFα suppression. Addition of WEB2086, a platelet activating factor (PAF) antagonist, to differentiated macrophages with MSU crystals unmasked TNFα secretion 0.7±0.06 mean ± SEM; ng/mL per 106 cells. This study identifies a role for PAF and the PAF receptor antagonist in the pathway by which macrophages ingest MSU crystals and resolve the concomitant inflammation. |
| format | Article |
| id | doaj-art-c4b39c52edab4c769def08debe1d7fe0 |
| institution | DOAJ |
| issn | 2090-8040 2042-0099 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Inflammation |
| spelling | doaj-art-c4b39c52edab4c769def08debe1d7fe02025-08-20T03:23:06ZengWileyInternational Journal of Inflammation2090-80402042-00992014-01-01201410.1155/2014/526496526496Macrophage Derived Platelet Activating Factor Implicated in the Resolution Phase of Gouty InflammationDarshna Yagnik0Department of Natural Sciences, School of Science and Technology, Middlesex University, The Burroughs, London NW4 4BT, UKHuman blood derived in vitro differentiated monocytes or macrophages are a population of cells which have been investigated over the years to determine the role these cells play in the resolution phase of gout. Macrophages are able to phagocytose monosodium urate monohydrate (MSU) crystals without releasing inflammatory factors. This study analysed macrophage platelet activating factor secretion and its possible role in the pathway of gout resolution. Analysis of sunatants from in vitro differentiated macrophages stimulated with MSU crystals revealed the secretion of platelet activating factor (PAF) 1.54±0.10 mean ± SEM; ng/mL per 106 cells. This secretion was absent in immature monocytes treated similarly. When these monocytes were pretreated with recombinant human PAF-acetylhydrolase (rhuPAF-AH) and MSU crystals resulted in TNFα suppression. Addition of WEB2086, a platelet activating factor (PAF) antagonist, to differentiated macrophages with MSU crystals unmasked TNFα secretion 0.7±0.06 mean ± SEM; ng/mL per 106 cells. This study identifies a role for PAF and the PAF receptor antagonist in the pathway by which macrophages ingest MSU crystals and resolve the concomitant inflammation.http://dx.doi.org/10.1155/2014/526496 |
| spellingShingle | Darshna Yagnik Macrophage Derived Platelet Activating Factor Implicated in the Resolution Phase of Gouty Inflammation International Journal of Inflammation |
| title | Macrophage Derived Platelet Activating Factor Implicated in the Resolution Phase of Gouty Inflammation |
| title_full | Macrophage Derived Platelet Activating Factor Implicated in the Resolution Phase of Gouty Inflammation |
| title_fullStr | Macrophage Derived Platelet Activating Factor Implicated in the Resolution Phase of Gouty Inflammation |
| title_full_unstemmed | Macrophage Derived Platelet Activating Factor Implicated in the Resolution Phase of Gouty Inflammation |
| title_short | Macrophage Derived Platelet Activating Factor Implicated in the Resolution Phase of Gouty Inflammation |
| title_sort | macrophage derived platelet activating factor implicated in the resolution phase of gouty inflammation |
| url | http://dx.doi.org/10.1155/2014/526496 |
| work_keys_str_mv | AT darshnayagnik macrophagederivedplateletactivatingfactorimplicatedintheresolutionphaseofgoutyinflammation |