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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Am+J+Physiol+Cell+Physiol
2014 ; 307
(1
): C39-54
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Identification and signature profiles for pro-resolving and inflammatory lipid
mediators in human tissue
#MMPMID24696140
Colas RA
; Shinohara M
; Dalli J
; Chiang N
; Serhan CN
Am J Physiol Cell Physiol
2014[Jul]; 307
(1
): C39-54
PMID24696140
show ga
Resolution of acute inflammation is an active process locally controlled by a
novel genus of specialized pro-resolving mediators (SPM) that orchestrate key
resolution responses. Hence, it is of general interest to identify individual
bioactive mediators and profile their biosynthetic pathways with related isomers
as well as their relation(s) to classic eicosanoids in mammalian tissues. Lipid
mediator (LM)-SPM levels and signature profiles of their biosynthetic pathways
were investigated using liquid chromatography-tandem mass spectrometry
(LC-MS-MS)-based LM metabololipidomics. LM and SPM were identified using ?6
diagnostic ions and chromatographic behavior matching with both authentic and
synthetic materials. This approach was validated using the composite reference
plasma (SRM1950) of 100 healthy individuals. Using targeted LM
metabololipidomics, we profiled LM and SPM pathways in human peripheral blood
(plasma and serum) and lymphoid organs. In these, we identified endogenous SPM
metabolomes, namely, the potent lipoxins (LX), resolvins (Rv), protectins (PD),
and maresins (MaR). These included RvD1, RvD2, RvD3, MaR1, and NPD1/PD1, which
were identified in amounts within their bioactive ranges. In plasma and serum,
principal component analysis (PCA) identified signature profiles of eicosanoids
and SPM clusters. Plasma-SPM increased with omega-3 and acetylsalicylic acid
intake that correlated with increased phagocytosis of Escherichia coli in whole
blood. These findings demonstrate an approach for identification of SPM pathways
(e.g., resolvins, protectins, and maresins) in human blood and lymphoid tissues
that were in amounts commensurate with their pro-resolving, organ protective, and
tissue regeneration functions. LM metabololipidomics coupled with calibration
tissues and physiological changes documented herein provide a tool for functional
phenotypic profiling.
|*Metabolomics/methods
[MESH]
|Adult
[MESH]
|Aged
[MESH]
|Aged, 80 and over
[MESH]
|Anti-Inflammatory Agents/pharmacology
[MESH]
|Aspirin/pharmacology
[MESH]
|Biomarkers/blood
[MESH]
|Chromatography, Liquid
[MESH]
|Docosahexaenoic Acids/blood
[MESH]
|Escherichia coli/metabolism
[MESH]
|Fatty Acids, Essential/pharmacology
[MESH]
|Female
[MESH]
|Humans
[MESH]
|Inflammation Mediators/*blood
[MESH]
|Inflammation/*blood/immunology/prevention & control
[MESH]