Inflammation Research

, Volume 61, Issue 5, pp 473–483

Prevention of 1-palmitoyl lysophosphatidylcholine-induced inflammation by polyunsaturated acyl lysophosphatidylcholine

Original Research Paper

Abstract

Objective

The aim of this study was to examine the inflammation induced by saturated acyl lysophosphatidylcholine (LPC) in vivo and to investigate whether it could be attenuated by the action of polyunsaturated acyl lysophosphatidylcholines (LPCs), which are known as anti-inflammatory lipid mediators.

Methods

First, saturated acyl LPC was administered intraperitoneally (i.p.) to mice and the inflammatory profile was extensively characterized. Subsequently, the preventive effect of polyunsaturated acyl LPCs, i.p. administered 30 min after saturated acyl LPC, was evaluated by measuring indices of inflammation such as leukocyte migration, plasma leakage, and eicosanoid or cytokine formation by light microscopy, Evans blue dye as indicator, and enzyme-linked immunosorbent assay, respectively.

Results

Saturated acyl LPCs as LPC16:0 (100 mg/kg, i.p.) proved to be an effective inflammation inducer which causes a significant increase in plasma leakage, leukocyte migration into peritoneum and elevation of pro-inflammatory mediators. Interestingly, LPC20:4 and LPC22:6 (50 and 150 μg/kg) significantly nullified LPC16:0-induced inflammation. The anti-inflammatory effects of LPC20:4 and LPC22:6 were related to down-regulation of leukocyte extravasation, plasma leakage, and formation of pro-inflammatory mediators (IL-5, IL-6, NO, 12-HETE and PGE2) stimulated by LPC16:0, and up-regulation of anti-inflammatory mediators (IL-4 and IL-10).

Conclusion

These results indicated that the pro-inflammatory activity of saturated acyl LPCs could be antagonized by the actions of polyunsaturated acyl LPCs, anti-inflammatory lipid mediators.

Keywords

Inflammatory 1-Palmitoyl-LPC 1-Arachidonoyl-LPC 1-Docosahexaenoyl-LPC Anti-inflammatory 

Abbreviations

AA

Arachidonic acid

LPC14:0

1-Myristoyl-lysophosphatidylcholine

LPC16:0

1-Palmitoyl-lysophosphatidylcholine

LPC18:0

1-Stearoyl-lysophosphatidylcholine

LPC18:1

1-Oleoyl-lysophosphatidylcholine

LPC18:2

1-Linoleoyl-lysophosphatidylcholine

LPC20:4

1-Arachidonoyl-lysophosphatidylcholine

LPC22:6

1-Docosahexaenoyl-lysophosphatidylcholine

PGE2

Prostaglandin E2

IL

Interleukin

NO

Nitric oxide

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Copyright information

© Springer Basel AG 2012

Authors and Affiliations

  1. 1.College of PharmacyChungnam National UniversityDaejeonKorea
  2. 2.Department of Food and NutritionChungnam National UniversityDaejeonKorea

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